{
    "model": {
        "rank": 5356,
        "code": "thing-q131269",
        "model_id": "vr.tr.sonata",
        "name": "sonata",
        "purpose": "Enable an agent to recognise a sonata as a musical work, assess its identity and musical completeness, and identify suitable expressions and permitted uses.",
        "family": "Thing Registry",
        "category": "Information and virtual systems",
        "status": "research-draft",
        "kind": "thing",
        "plane": "INF",
        "domain": "INF.MED",
        "industry": "",
        "version": "",
        "url": "/models/thing/q131269/",
        "tier": 2,
        "score": 68,
        "payload": {
            "layer": "wikidata",
            "aliases": [
                "trio sonata",
                "piano sonata",
                "sonatina",
                "oboe sonata",
                "horn sonata",
                "26 violin Sonatas",
                "clarinet sonata",
                "flute sonata",
                "bassoon sonata",
                "sonata da chiesa",
                "organ sonata",
                "viola sonata",
                "sonata da camera",
                "violin sonata",
                "cello sonata",
                "sonata for oboe and piano",
                "sonata for cello and piano"
            ],
            "aliasCount": 17,
            "merged": 17,
            "knownIn": 68,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": "vr.tr.sonata",
            "source": {
                "dataset": "wikidata",
                "item": "Q131269",
                "url": "https://www.wikidata.org/wiki/Q131269",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T22:11:46Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 25,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a08839-5e0d-7b90-91f7-04a93a44e31c\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: sonata\nSense to describe: (none recorded)\nDomain code: INF.MED\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 005: 1001 register",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 51.1,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a08839-5e00-7702-8b9d-9d66491f9c3d\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: sonata\nRegistry id: vr.tr.sonata\nPlane / domain: INF / INF.MED\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\n\nContext fo"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q131269",
                "registryId": "vr.tr.sonata",
                "name": "sonata",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "INF.MED"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q131269/",
            "model": {
                "registry_id": "vr.tr.sonata",
                "name": "sonata",
                "purpose": "Enable an agent to recognise a sonata as a musical work, assess its identity and musical completeness, and identify suitable expressions and permitted uses.",
                "definition": "A sonata is an instrumental composition whose meaning varies historically, most commonly a work in several contrasting movements for a solo instrument or a solo instrument with keyboard accompaniment.",
                "scope_statement": "This model owns the identity, genre attribution, movement organisation, performing forces and expression relationships of a musical work registered as a sonata under vr.tr.sonata in INF / INF.MED, while keeping scores, performances, recordings and physical copies distinct.",
                "in_scope": [
                    "Evidence for identifying a musical work as a sonata",
                    "Composer attribution, titles and work-level catalogue identifiers",
                    "Movement sequence, internal organisation and completeness",
                    "Intended instruments, ensemble roles and alternative scorings",
                    "Relationships to revisions, arrangements, score editions and recorded performances",
                    "Evidence needed to select an expression and assess a proposed use"
                ],
                "out_of_scope": [
                    "Sonata form as an independently modelled compositional structure",
                    "General music-theory accounts of harmony, rhythm and thematic development",
                    "Publication production and inventory management for score editions and copies",
                    "Recording production, audio encoding and distribution",
                    "Instrument construction and performer biographies",
                    "General copyright rules and jurisdiction-specific legal determinations"
                ],
                "distinguishing_features": [
                    "A sonata attribution requires title, catalogue or contextual evidence; detecting sonata form in a movement is insufficient.",
                    "A movement using sonata form can belong to another genre, while a work identified as a sonata need not use that form in every movement.",
                    "Movement count, instrumentation and duration support identification but are not individually decisive genre tests.",
                    "A sonatina designation must be recorded as evidence rather than automatically converted into sonata or distinguished by a fixed duration threshold.",
                    "The sonata as a work persists across linked scores and performances; an edition, recording or individual movement is not automatically the whole work."
                ],
                "characteristics": [
                    {
                        "name": "Sonata attribution",
                        "kind": "category",
                        "unit_or_values": "explicitly designated; catalogued as sonata; contextually attributed; disputed; unresolved",
                        "why_it_matters": "Makes the basis for genre recognition visible without treating musical form as sufficient proof."
                    },
                    {
                        "name": "Work identification",
                        "kind": "relation",
                        "unit_or_values": "Links to composer authority records, thematic catalogues, opus designations and documented title variants",
                        "why_it_matters": "Distinguishes works with similar titles, numbering or keys."
                    },
                    {
                        "name": "Performing forces",
                        "kind": "category",
                        "unit_or_values": "Documented instruments, player counts, ensemble roles and scoring alternatives",
                        "why_it_matters": "Determines performance suitability and helps distinguish original scoring from arrangement."
                    },
                    {
                        "name": "Movement organisation",
                        "kind": "relation",
                        "unit_or_values": "Ordered movement identities with headings, boundaries and version-specific membership",
                        "why_it_matters": "Supports whole-work recognition, movement matching and completeness assessment."
                    },
                    {
                        "name": "Tonal designation",
                        "kind": "category",
                        "unit_or_values": "Documented work-level key or tonal description; absent; disputed; not applicable",
                        "why_it_matters": "Supports identification while avoiding the assumption that every sonata has a single governing key."
                    },
                    {
                        "name": "Musical completeness",
                        "kind": "state",
                        "unit_or_values": "complete; unfinished; fragmentary survival; externally completed; unresolved",
                        "why_it_matters": "Separates an unfinished composition from missing source material or a later completion."
                    },
                    {
                        "name": "Expression relationship",
                        "kind": "relation",
                        "unit_or_values": "Links to documented revisions, arrangements, editions, performances and recordings with relationship evidence",
                        "why_it_matters": "Prevents different musical texts or scorings from being silently treated as interchangeable."
                    },
                    {
                        "name": "Performance duration",
                        "kind": "measurement",
                        "unit_or_values": "Minutes or seconds, tied to a specified performance or estimate and repeat choices",
                        "why_it_matters": "Supports programming without treating one recording's duration as an invariant of the work."
                    }
                ],
                "affordances": [
                    "Resolve a sonata title or catalogue reference to a work while retaining competing identifications.",
                    "Match score movements and recording tracks to the sonata's documented movement sequence.",
                    "Select a scoring and edition suitable for the available performers and instruments.",
                    "Compare revisions or arrangements and expose differences relevant to rehearsal and performance.",
                    "Flag missing movements, uncertain attribution or later completion before presenting an expression as complete.",
                    "Identify the work, edition and recording evidence needed to assess a requested performance, reproduction or reuse."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "sonata-identity",
                        "name": "Sonata identity",
                        "description": "Establishes which musical work is being described and why it belongs under sonata.",
                        "rationale": "Titles, numbering and structural similarities can otherwise produce false identifications.",
                        "layers": [
                            {
                                "id": "genre-evidence",
                                "name": "Genre evidence",
                                "description": "Records the basis and limits of the sonata designation.",
                                "findings": [
                                    {
                                        "id": "sonata-designation",
                                        "name": "Sonata designation",
                                        "description": "Retain the documented designation and its context independently of movement-level formal analysis.",
                                        "questions": [
                                            {
                                                "text": "Which title source, catalogue entry or scholarly account identifies this work as a sonata?",
                                                "kind": "provenance",
                                                "id": "sonata-designation-q01"
                                            },
                                            {
                                                "text": "Does the designation refer to the whole work, an individual movement, or an analyst's description of form?",
                                                "kind": "boundary",
                                                "id": "sonata-designation-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "work-disambiguation",
                                "name": "Work disambiguation",
                                "description": "Separates the work from similarly named sonatas and inconsistent numbering systems.",
                                "findings": [
                                    {
                                        "id": "catalogue-and-attribution",
                                        "name": "Catalogue and attribution",
                                        "description": "Connect title variants, composer attribution and catalogue references without assuming a number or nickname is unique.",
                                        "questions": [
                                            {
                                                "text": "Which combination of attribution, catalogue identifier, scoring and musical incipit distinguishes this sonata?",
                                                "kind": "definition",
                                                "id": "catalogue-and-attribution-q01"
                                            },
                                            {
                                                "text": "Which sources explain conflicting sonata numbers, titles or composer attributions?",
                                                "kind": "provenance",
                                                "id": "catalogue-and-attribution-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "movement-architecture",
                        "name": "Movement architecture",
                        "description": "Describes the sonata's constituent movements and their musical relationships.",
                        "rationale": "An agent needs to recognise the whole work without imposing a fixed movement count or universal sonata-form template.",
                        "layers": [
                            {
                                "id": "movement-membership",
                                "name": "Movement membership",
                                "description": "Identifies the movements, their order and any disputed or version-dependent boundaries.",
                                "findings": [
                                    {
                                        "id": "movement-sequence",
                                        "name": "Movement sequence",
                                        "description": "Record movement identities separately from score page divisions and recording track divisions.",
                                        "questions": [
                                            {
                                                "text": "What movement sequence and headings are documented for the selected version?",
                                                "kind": "definition",
                                                "id": "movement-sequence-q01"
                                            },
                                            {
                                                "text": "Do continuous sections, omitted movements or track divisions create ambiguity about movement boundaries?",
                                                "kind": "boundary",
                                                "id": "movement-sequence-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "musical-organisation",
                                "name": "Musical organisation",
                                "description": "Captures supported accounts of form, tonal relationships and recurring material.",
                                "findings": [
                                    {
                                        "id": "movement-form-and-links",
                                        "name": "Movement form and links",
                                        "description": "Keep analytical claims attributable, including uncertainty about sonata form and relationships between movements.",
                                        "questions": [
                                            {
                                                "text": "Which movements have supported formal analyses, and where do those analyses disagree?",
                                                "kind": "provenance",
                                                "id": "movement-form-and-links-q01"
                                            },
                                            {
                                                "text": "What tonal, thematic or transitional relationships help explain how these movements constitute this sonata?",
                                                "kind": "definition",
                                                "id": "movement-form-and-links-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "scoring-and-realisation",
                        "name": "Scoring and realisation",
                        "description": "Connects the sonata's performing requirements to a specific playable expression.",
                        "rationale": "Instrument labels alone may conceal alternative scorings, ensemble roles and editorial realisations that affect performance.",
                        "layers": [
                            {
                                "id": "instrumental-requirements",
                                "name": "Instrumental requirements",
                                "description": "Records the documented forces and the status of scoring alternatives.",
                                "findings": [
                                    {
                                        "id": "forces-and-roles",
                                        "name": "Forces and roles",
                                        "description": "Identify required instruments and roles, distinguishing source-supported alternatives from later substitutions.",
                                        "questions": [
                                            {
                                                "text": "Which instruments, player counts and ensemble roles does the selected source specify?",
                                                "kind": "definition",
                                                "id": "forces-and-roles-q01"
                                            },
                                            {
                                                "text": "Is an alternative instrument or accompaniment documented for this version, or does it require an arrangement?",
                                                "kind": "boundary",
                                                "id": "forces-and-roles-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "performance-choices",
                                "name": "Performance choices",
                                "description": "Makes consequential realisation and timing choices explicit.",
                                "findings": [
                                    {
                                        "id": "playable-expression",
                                        "name": "Playable expression",
                                        "description": "Link performance planning to the chosen score, including repeats, cuts and any required realisation.",
                                        "questions": [
                                            {
                                                "text": "Does this score require a continuo realisation, editorial supplementation or another preparation before rehearsal?",
                                                "kind": "action",
                                                "id": "playable-expression-q01"
                                            },
                                            {
                                                "text": "What duration is supported for the selected movement sequence, repeat policy and performance approach?",
                                                "kind": "measurement",
                                                "id": "playable-expression-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "text-history-and-use",
                        "name": "Text history and use",
                        "description": "Tracks the sonata's surviving musical text, versions and expressions relevant to a proposed use.",
                        "rationale": "A complete score, a reconstructed text and a recording can represent different evidence and different permissions for the same sonata.",
                        "layers": [
                            {
                                "id": "version-and-completeness",
                                "name": "Version and completeness",
                                "description": "Distinguishes authorial states, source loss, editorial intervention and later completion.",
                                "findings": [
                                    {
                                        "id": "textual-state",
                                        "name": "Textual state",
                                        "description": "Assess completeness against a stated version and retain the provenance of reconstructed or added music.",
                                        "questions": [
                                            {
                                                "text": "Is the sonata unfinished, incompletely preserved, or complete in a version different from the selected score?",
                                                "kind": "boundary",
                                                "id": "textual-state-q01"
                                            },
                                            {
                                                "text": "Which sources identify revisions, reconstructed passages or music supplied by a later completer?",
                                                "kind": "provenance",
                                                "id": "textual-state-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "expression-selection-and-permissions",
                                "name": "Expression selection and permissions",
                                "description": "Links the intended use to the actual musical text, publication or recording involved.",
                                "findings": [
                                    {
                                        "id": "use-specific-expression",
                                        "name": "Use-specific expression",
                                        "description": "Keep work identity distinct from the edition or recording selected for performance, reproduction or reuse.",
                                        "questions": [
                                            {
                                                "text": "Which version, arrangement, score edition or recording matches the requested use and movement coverage?",
                                                "kind": "action",
                                                "id": "use-specific-expression-q01"
                                            },
                                            {
                                                "text": "What rights or licence evidence applies to the composition and the particular edition or recording being used?",
                                                "kind": "provenance",
                                                "id": "use-specific-expression-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "The sense described is the musical genre, not an individual work titled Sonata.",
                                            "The listed kinds overlap: instrumentation and historical function provide different classification axes.",
                                            "This is recalled knowledge, not source-verified research; historical terminology and identifiers for any particular sonata require checking."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of sonata this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Solo keyboard sonata",
                                            "Unaccompanied solo instrumental sonata",
                                            "Sonata for instrument and keyboard",
                                            "Trio sonata",
                                            "Sonata da chiesa",
                                            "Sonata da camera"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of sonata this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-identifiers",
                                        "name": "Identifiers and schemes",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "scheme": "Composer-specific thematic catalogue",
                                                "value_or_pattern": "Catalogue abbreviation followed by a work number, such as K. or KV for Mozart",
                                                "note": "Identifies a composition within a composer's catalogue; catalogue systems are not specific to sonatas."
                                            },
                                            {
                                                "scheme": "Opus numbering",
                                                "value_or_pattern": "Op. number, sometimes followed by an individual number within the opus",
                                                "note": "Requires the composer's name for context; not every sonata has an opus number."
                                            },
                                            {
                                                "scheme": "ISWC",
                                                "value_or_pattern": "T followed by nine digits and a check digit",
                                                "note": "Identifies a registered musical work, not its printed edition or sound recording; coverage is not universal."
                                            },
                                            {
                                                "scheme": "ISMN",
                                                "value_or_pattern": "13 digits beginning with 979-0",
                                                "note": "Identifies a publication of notated music, such as a particular score edition, rather than the underlying sonata."
                                            },
                                            {
                                                "scheme": "ISRC",
                                                "value_or_pattern": "12-character recording identifier",
                                                "note": "Identifies a particular recording; separately recorded movements may have separate identifiers."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of sonata this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-standards-and-regulation",
                                        "name": "Standards and regulation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "IFLA Library Reference Model, issued by the International Federation of Library Associations and Institutions, distinguishes work, expression, manifestation and item for cataloguing.",
                                            "ISO 15707 specifies the International Standard Musical Work Code (ISWC).",
                                            "ISO 10957 specifies the International Standard Music Number (ISMN).",
                                            "ISO 3901 specifies the International Standard Recording Code (ISRC)."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-standards-and-regulation-q01",
                                                "text": "Which of these standards and regulation hold for the sense of sonata this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Concert repertoire for soloists and small instrumental ensembles.",
                                            "Instrumental teaching, examinations and development of interpretive technique.",
                                            "Study of musical form, thematic development and historical performance practice.",
                                            "Publication, recording and cataloguing of instrumental repertoire."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of sonata this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Confusing the sonata genre with sonata form, which is a way of organizing an individual movement and also occurs in other genres.",
                                            "Treating a score edition, arrangement, performance or recording as identical to the underlying composition.",
                                            "Assuming every sonata has three or four movements or begins with a movement in sonata form.",
                                            "Misidentifying works through an opus number or generic title without the composer and catalogue context.",
                                            "Assuming that the copyright status of a composition also determines the status of an edition, arrangement or recording."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of sonata this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-regional-variation",
                                        "name": "Regional variation",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Italian Baroque usage distinguished sonata da chiesa and sonata da camera, although their musical features could overlap.",
                                            "German-speaking Classical and Romantic traditions made the keyboard sonata and the sonata for instrument and piano prominent models of the genre.",
                                            "French Baroque repertoire also used the spelling 'sonate'; naming and movement conventions varied across periods and composers."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-regional-variation-q01",
                                                "text": "Which of these regional variation hold for the sense of sonata this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "name": "Sonata form",
                                                "difference": "A formal organization typically involving exposition, development and recapitulation, rather than a genre of complete composition."
                                            },
                                            {
                                                "name": "Sonatina",
                                                "difference": "Usually denotes a smaller-scale or less technically demanding sonata, though the distinction is not governed by a fixed threshold."
                                            },
                                            {
                                                "name": "Concerto",
                                                "difference": "Typically features one or more soloists in relation to an orchestra or larger ensemble."
                                            },
                                            {
                                                "name": "Suite",
                                                "difference": "Typically groups dances or character pieces; historical overlap with the sonata da camera prevents an absolute structural boundary."
                                            },
                                            {
                                                "name": "Symphony",
                                                "difference": "In its usual modern sense, a substantial orchestral composition, often using movement structures also found in sonatas."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of sonata this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Which historical and catalogue authorities should establish the boundary of sonata when the title is absent or disputed?",
                "How should the registry relate sonata to sonatina and historically qualified sonata designations without creating unsupported separate entries?",
                "What criteria should distinguish a revision or arrangement of a sonata from a separately identified derivative work?",
                "Which source hierarchy should resolve disagreements over movement order, scoring, attribution and completeness?",
                "Which existing Vercy music-work, sonata-form and rights models should this model reference to avoid duplicating their responsibilities?"
            ],
            "statistics": {
                "bundles": 5,
                "layers": 9,
                "findings": 16,
                "questions": 24
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "work, medium or creative form",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a sonata, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an agent to recognise a sonata as a musical work, assess its identity and musical completeness, and identify suitable expressions and permitted uses.",
            "characteristics": {
                "substance": "information",
                "origin": "conceptual",
                "agency": "inert"
            },
            "whatYouCanDoWithIt": [
                "read and interpreted",
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Names folded into this entry, which a task may need to split apart again: trio sonata, piano sonata, sonatina, oboe sonata, horn sonata, 26 violin Sonatas, clarinet sonata, flute sonata, bassoon sonata, sonata da chiesa, organ sonata, viola sonata.",
                "17 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.",
                "Described in 68 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is."
            ],
            "openQuestionsForResearch": [
                "Which of the bundles below does a real task actually need, and which are ceremony?",
                "What does this thing have that the facets do not capture at all?",
                "Which neighbouring kind is most often confused with a sonata, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "content that has to be carried by something else",
            "physicalCharacter": [
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "read it and act on what it says",
                "observe it, measure it, record its state"
            ],
            "howItIsRecognised": [
                "What is seen is a copy or a performance, not the work. Recognising the work means recognising the content through whatever is carrying it."
            ],
            "relatedModels": [
                {
                    "relation": "covers",
                    "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.",
                    "targets": [
                        "trio sonata",
                        "piano sonata",
                        "sonatina",
                        "oboe sonata",
                        "horn sonata",
                        "26 violin Sonatas",
                        "clarinet sonata",
                        "flute sonata",
                        "bassoon sonata",
                        "sonata da chiesa",
                        "organ sonata",
                        "viola sonata"
                    ]
                }
            ],
            "standing": "Described in 68 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 17 finer distinctions are held inside this entry as names rather than as separate models.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one sonata from another, and a sonata from things that resemble it.",
                        "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.",
                        "layers": [
                            {
                                "id": "naming-and-identifiers",
                                "name": "Names and identifiers",
                                "description": "The names this thing goes by and the identifiers that survive translation and time.",
                                "findings": [
                                    {
                                        "id": "preferred-name-and-aliases",
                                        "name": "Preferred name, aliases and local names",
                                        "description": "Which name to use, which names mean the same thing, and which merely sound similar.",
                                        "questions": [
                                            {
                                                "id": "preferred-name-and-aliases-q01",
                                                "text": "What identifies and describes the name of a sonata, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q02",
                                                "text": "Who or what asserted this about the name of a sonata, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q03",
                                                "text": "What may an agent decide or do once the name of a sonata is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "stable-identifiers",
                                        "name": "Stable identifiers and external keys",
                                        "description": "Identifiers that keep pointing at this kind of thing across systems and languages.",
                                        "questions": [
                                            {
                                                "id": "stable-identifiers-q01",
                                                "text": "What identifies and describes an identifier for a sonata, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q02",
                                                "text": "Who or what asserted this about an identifier for a sonata, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q03",
                                                "text": "What may an agent decide or do once an identifier for a sonata is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "classification-and-granularity",
                                "name": "Classification and granularity",
                                "description": "Where a sonata sits among kinds, and how finely a task needs to cut it.",
                                "findings": [
                                    {
                                        "id": "kind-and-parents",
                                        "name": "Kind, parents and neighbouring kinds",
                                        "description": "The classes this thing belongs to and the ones it is next to.",
                                        "questions": [
                                            {
                                                "id": "kind-and-parents-q01",
                                                "text": "What identifies and describes the kind of a sonata, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q02",
                                                "text": "Who or what asserted this about the kind of a sonata, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q03",
                                                "text": "What may an agent decide or do once the kind of a sonata is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "distinguishing-features",
                                        "name": "Distinguishing features",
                                        "description": "What separates a sonata from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a sonata, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q02",
                                                "text": "Who or what asserted this about what distinguishes a sonata, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q03",
                                                "text": "What may an agent decide or do once what distinguishes a sonata is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "state-and-lifecycle",
                        "name": "State and lifecycle",
                        "description": "The states a sonata passes through and the events that move it between them.",
                        "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.",
                        "layers": [
                            {
                                "id": "lifecycle-stages",
                                "name": "Lifecycle stages",
                                "description": "From coming into existence to ceasing to be one of these.",
                                "findings": [
                                    {
                                        "id": "stages-and-transitions",
                                        "name": "Stages and transitions",
                                        "description": "The stages worth naming and what moves a sonata between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a sonata, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q02",
                                                "text": "Who or what asserted this about the lifecycle of a sonata, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q03",
                                                "text": "What may an agent decide or do once the lifecycle of a sonata is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "observations-and-status",
                                "name": "Observations and current status",
                                "description": "What is observed about a sonata, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a sonata is recorded so that it can be superseded rather than overwritten.",
                                        "questions": [
                                            {
                                                "id": "observation-record-q01",
                                                "text": "What identifies and describes an observation of a sonata, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q02",
                                                "text": "Who or what asserted this about an observation of a sonata, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q03",
                                                "text": "What may an agent decide or do once an observation of a sonata is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "content-and-access",
                        "name": "Content, encoding and access",
                        "description": "What a sonata says, how it is encoded and who may read it.",
                        "rationale": "An informational thing carries content that can be copied, versioned and withheld, none of which its physical carrier explains.",
                        "layers": [
                            {
                                "id": "content-and-encoding",
                                "name": "Content and encoding",
                                "description": "The content itself, its format and its language.",
                                "findings": [
                                    {
                                        "id": "content-and-format",
                                        "name": "Content, format and language",
                                        "description": "What a sonata contains and in what form it is held.",
                                        "questions": [
                                            {
                                                "id": "content-and-format-q01",
                                                "text": "What identifies and describes the content of a sonata, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "content-and-format-q02",
                                                "text": "Who or what asserted this about the content of a sonata, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "content-and-format-q03",
                                                "text": "What may an agent decide or do once the content of a sonata is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "access-and-rights",
                                "name": "Access, rights and retention",
                                "description": "Who may read, copy or change it, and for how long it is kept.",
                                "findings": [
                                    {
                                        "id": "access-rules",
                                        "name": "Access rules and retention",
                                        "description": "The permissions attached to a sonata and the period it survives.",
                                        "questions": [
                                            {
                                                "id": "access-rules-q01",
                                                "text": "What identifies and describes access to a sonata, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "access-rules-q02",
                                                "text": "Who or what asserted this about access to a sonata, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "access-rules-q03",
                                                "text": "What may an agent decide or do once access to a sonata is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "work-and-manifestation",
                        "name": "Work, version and copy",
                        "description": "Which level of sonata a statement is about.",
                        "rationale": "The work, the edition, the file and the copy in hand are four things; rights and content attach to different ones.",
                        "layers": [
                            {
                                "id": "levels",
                                "name": "Levels of the thing",
                                "description": "Work, expression, manifestation and item, in plain terms.",
                                "findings": [
                                    {
                                        "id": "level-rules",
                                        "name": "What belongs at each level",
                                        "description": "Which facts hold for the work and which only for one copy.",
                                        "questions": [
                                            {
                                                "id": "level-rules-q01",
                                                "text": "For sonata, which facts belong to the work itself, which to a version, and which to a single copy?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "level-rules-q02",
                                                "text": "What identifier exists at each level, and which one is being cited?",
                                                "kind": "definition"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "versions",
                                "name": "Versions, editions and variants",
                                "description": "How versions differ and which is canonical to whom.",
                                "findings": [
                                    {
                                        "id": "version-record",
                                        "name": "Versions and canonicity",
                                        "description": "Differences that matter and who calls one authoritative.",
                                        "questions": [
                                            {
                                                "id": "version-record-q01",
                                                "text": "Which versions or editions of sonata exist, and how do they differ substantively?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "version-record-q02",
                                                "text": "Who treats which version as authoritative, and for what purpose?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "authorship-and-rights",
                        "name": "Authorship, rights and permitted use",
                        "description": "Who made sonata and what may be done with it.",
                        "rationale": "Rights are jurisdictional, time-limited and attached to a level, and an agent that ignores that will copy what it may not.",
                        "layers": [
                            {
                                "id": "authorship",
                                "name": "Authorship and contribution",
                                "description": "Who contributed what, and in what capacity.",
                                "findings": [
                                    {
                                        "id": "contribution-record",
                                        "name": "Contributors and roles",
                                        "description": "The people and bodies behind it, with their roles.",
                                        "questions": [
                                            {
                                                "id": "contribution-record-q01",
                                                "text": "Who authored or contributed to sonata, in what roles, and how is that attested?",
                                                "kind": "provenance"
                                            },
                                            {
                                                "id": "contribution-record-q02",
                                                "text": "Where authorship is disputed or anonymous, what is recorded instead?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "rights",
                                "name": "Rights and permissions",
                                "description": "Which rights subsist, where, until when, and what they permit.",
                                "findings": [
                                    {
                                        "id": "rights-record",
                                        "name": "Rights, term and permitted acts",
                                        "description": "The regime in force and what it allows.",
                                        "questions": [
                                            {
                                                "id": "rights-record-q01",
                                                "text": "What rights subsist in sonata, in which jurisdictions, and until when?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "rights-record-q02",
                                                "text": "Which acts are permitted without further permission, and which must an agent refuse?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a sonata came from and when it held.",
                        "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.",
                        "layers": [
                            {
                                "id": "source-and-authority",
                                "name": "Source and authority",
                                "description": "Who said it, on what evidence, and how strongly.",
                                "findings": [
                                    {
                                        "id": "claim-provenance",
                                        "name": "Claim provenance and confidence",
                                        "description": "The authority behind each claim about a sonata and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a sonata, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q02",
                                                "text": "Who or what asserted this about a claim about a sonata, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q03",
                                                "text": "What may an agent decide or do once a claim about a sonata is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "time-and-versions",
                                "name": "Time, versions and supersession",
                                "description": "When a claim was true, when it was learnt, and what replaced it.",
                                "findings": [
                                    {
                                        "id": "validity-and-supersession",
                                        "name": "Validity period and supersession",
                                        "description": "How an old claim about a sonata is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a sonata, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q02",
                                                "text": "Who or what asserted this about the validity of a claim about a sonata, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q03",
                                                "text": "What may an agent decide or do once the validity of a claim about a sonata is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 6,
                "layers": 12,
                "findings": 14,
                "questions": 38
            }
        }
    }
}