{ "model": { "rank": 12337, "code": "thing-q1135557", "model_id": "vr.tr.quartet", "name": "quartet", "purpose": "Let an agent explain the quartet as an ensemble and a genre, identify kinds by instrumentation and tradition, relay repertoire and notable groups with sources, and distinguish quartets from other ensemble sizes.", "family": "Thing Registry", "category": "Society, people and institutions", "status": "research-draft", "kind": "thing", "plane": "SOC", "domain": "SOC.ORG", "industry": "", "version": "", "url": "/models/thing/q1135557/", "tier": 2, "score": 40, "payload": { "layer": "wikidata", "aliases": [ "jazz quartet", "flute quartet", "brass quartet", "Quartet Renaixement", "trombone quartet", "vocal quartet", "sibling musical quartet", "woodwind quartet", "barbershop quartet" ], "aliasCount": 9, "merged": 9, "knownIn": 40, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.quartet-communication", "source": { "dataset": "wikidata", "item": "Q1135557", "url": "https://www.wikidata.org/wiki/Q1135557", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T22:59:37Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 3, "engine": "claude" }, "metaModel": { "id": "THING-Q1135557", "registryId": "vr.tr.quartet", "name": "quartet", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "SOC.ORG" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q1135557/", "model": { "registry_id": "vr.tr.quartet", "name": "quartet", "purpose": "Let an agent explain the quartet as an ensemble and a genre, identify kinds by instrumentation and tradition, relay repertoire and notable groups with sources, and distinguish quartets from other ensemble sizes.", "definition": "A musical ensemble of four performers, or a composition written for four, in forms such as the string quartet, vocal quartet, jazz quartet, brass, flute and trombone quartets and named groups such as the Quartet Renaixement; the string quartet of two violins, viola and cello is the central chamber music medium since Haydn, and quartets exist across classical, jazz, popular and folk traditions.", "what_it_is_for": "Performing music in a group of four.", "affordances": [ "explain kinds by instrumentation", "relay repertoire and notable groups", "explain the string quartet tradition", "distinguish from other ensembles" ], "distinguishing_features": [ "Four performers", "Central chamber music medium", "Cross-genre presence", "Named ensembles" ], "appearance": "Four musicians performing together, with instruments or voices by kind.", "visual_identification": [ "Ensemble or work for four performers", "String, vocal, jazz, brass and wind quartets", "Trios have three and quintets five; a quartet composition is the work, the ensemble the group" ], "physical_properties": [ { "quantity": "string quartet instrumentation", "typical_range": "2 violins, viola, cello", "unit": "set", "note": "standard" } ], "families_and_kinds": [ "string quartets", "vocal quartets including barbershop and gospel", "jazz quartets", "brass, flute, trombone and other wind quartets", "piano quartets", "named ensembles such as the Quartet Renaixement" ], "related_models": [ { "relation": "is a kind of", "target": "musical ensemble", "why": "in registry terms" }, { "relation": "is a kind of", "target": "group of 4", "why": "in registry terms" }, { "relation": "includes", "target": "string quartet", "why": "the central form" }, { "relation": "is contrasted with", "target": "trio", "why": "and quintet by size" } ], "identifiers": [], "standards_and_regulation": [ "No regulation; performing rights and recording contracts" ], "failure_modes_and_hazards": [ "Confusing ensemble with composition", "Overlooking non-classical quartets", "Unsourced claims about named groups" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "identify", "name": "Identify", "description": "What kind of quartet.", "rationale": "Identity.", "layers": [ { "id": "kind", "name": "Kind", "description": "Kind and instrumentation.", "findings": [ { "id": "kind-finding", "name": "Kind", "description": "Kind.", "questions": [ { "text": "What kind of quartet is it, and what instruments or voices does it use?", "kind": "definition" }, { "text": "Is the question about an ensemble, a composition or another ensemble size?", "kind": "boundary" } ] } ] }, { "id": "groups", "name": "Groups", "description": "Named groups.", "findings": [ { "id": "groups-finding", "name": "Groups", "description": "Groups.", "questions": [ { "text": "Which quartets are notable in each tradition, with sources?", "kind": "provenance" }, { "text": "Which entry fits the specific group?", "kind": "action" } ] } ] } ] }, { "id": "music", "name": "Music", "description": "Repertoire and practice.", "rationale": "Practice.", "layers": [ { "id": "repertoire", "name": "Repertoire", "description": "Repertoire.", "findings": [ { "id": "repertoire-finding", "name": "Repertoire", "description": "Repertoire.", "questions": [ { "text": "What is the core repertoire for string and other quartets?", "kind": "provenance" }, { "text": "Which entry fits string quartet?", "kind": "action" } ] } ] }, { "id": "practice", "name": "Practice", "description": "Rehearsal and performance.", "findings": [ { "id": "practice-finding", "name": "Practice", "description": "Practice.", "questions": [ { "text": "How do quartets rehearse, balance and perform?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] } ] }, { "id": "genres", "name": "Genres", "description": "Across genres.", "rationale": "Context.", "layers": [ { "id": "jazz", "name": "Jazz", "description": "Jazz and popular quartets.", "findings": [ { "id": "jazz-finding", "name": "Jazz", "description": "Jazz.", "questions": [ { "text": "How do jazz and popular quartets differ in instrumentation and role?", "kind": "provenance" }, { "text": "Which entry fits jazz ensemble?", "kind": "action" } ] } ] }, { "id": "vocal", "name": "Vocal", "description": "Vocal quartets.", "findings": [ { "id": "vocal-finding", "name": "Vocal", "description": "Vocal.", "questions": [ { "text": "What vocal quartet traditions exist, from barbershop to gospel?", "kind": "provenance" }, { "text": "Which entry fits vocal music?", "kind": "action" } ] } ] } ] }, { "id": "history", "name": "History", "description": "History and study.", "rationale": "Context.", "layers": [ { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How did the string quartet develop from Haydn, and how did other quartet forms emerge?", "kind": "provenance" }, { "text": "Which entry fits chamber music?", "kind": "action" } ] } ] }, { "id": "study", "name": "Study", "description": "Study.", "findings": [ { "id": "study-finding", "name": "Study", "description": "Study.", "questions": [ { "text": "How do musicologists study quartet repertoire and ensembles?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should string quartet be a separate primary entry?", "How should repertoire databases be linked?", "The registry entry has merged aliases naming instrumentations and a specific group; should they be split off?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "organisation or institution", "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 quartet, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain the quartet as an ensemble and a genre, identify kinds by instrumentation and tradition, relay repertoire and notable groups with sources, and distinguish quartets from other ensemble sizes.", "characteristics": { "substance": "social", "origin": "conceptual", "agency": "collective" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: jazz quartet, flute quartet, brass quartet, Quartet Renaixement, trombone quartet, vocal quartet, sibling musical quartet, woodwind quartet, barbershop quartet.", "9 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 40 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 quartet, and on what evidence are they told apart?" ], "whatItIsMadeOf": "a social arrangement between people", "physicalCharacter": [ "Acts through people, and only through them.", "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": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see. Recognised by name, register entry and the people acting in its name, and those change while it stays the same body." ], "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": [ "jazz quartet", "flute quartet", "brass quartet", "Quartet Renaixement", "trombone quartet", "vocal quartet", "sibling musical quartet", "woodwind quartet", "barbershop quartet" ] } ], "standing": "Described in 40 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 9 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 quartet from another, and a quartet 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 quartet, 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 quartet, 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 quartet 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 quartet, 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 quartet, 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 quartet 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 quartet 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 quartet, 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 quartet, 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 quartet 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 quartet from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a quartet, 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 quartet, 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 quartet 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 quartet 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 quartet between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a quartet, 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 quartet, 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 quartet 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 quartet, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a quartet 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 quartet, 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 quartet, 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 quartet is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "people-and-responsibility", "name": "People, roles and responsibility", "description": "Who stands in what relation to a quartet.", "rationale": "Social things are defined by the relations people hold to them, and those relations change without the thing changing.", "layers": [ { "id": "roles-and-parties", "name": "Roles and parties", "description": "The roles that exist around a quartet and who fills them.", "findings": [ { "id": "role-assignments", "name": "Role assignments and their validity", "description": "Who holds which role over a quartet, from when, and on whose authority.", "questions": [ { "id": "role-assignments-q01", "text": "What identifies and describes a role over a quartet, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "role-assignments-q02", "text": "Who or what asserted this about a role over a quartet, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "role-assignments-q03", "text": "What may an agent decide or do once a role over a quartet is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "ownership-and-accountability", "name": "Ownership and accountability", "description": "Who answers for a quartet and who may decide about it.", "findings": [ { "id": "accountability", "name": "Accountability and decision rights", "description": "Where responsibility for a quartet sits when something goes wrong.", "questions": [ { "id": "accountability-q01", "text": "What identifies and describes responsibility for a quartet, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "accountability-q02", "text": "Who or what asserted this about responsibility for a quartet, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "accountability-q03", "text": "What may an agent decide or do once responsibility for a quartet is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "legal-identity", "name": "Legal identity and mandate", "description": "What quartet is in law and what it exists to do.", "rationale": "Legal identity survives changes of name, address, staff and premises, which is exactly why it must be recorded separately from all of them.", "layers": [ { "id": "registration", "name": "Legal form and registration", "description": "Form, register, identifiers and jurisdiction.", "findings": [ { "id": "registration-record", "name": "Registration and identifiers", "description": "What names this body unambiguously in law.", "questions": [ { "id": "registration-record-q01", "text": "What legal form does quartet take, in which register, under which identifier?", "kind": "definition" }, { "id": "registration-record-q02", "text": "What survives a rename, a merger or a move of premises, and what does not?", "kind": "boundary" } ] } ] }, { "id": "mandate", "name": "Mandate and governing instrument", "description": "The purpose it is bound to and the document that binds it.", "findings": [ { "id": "mandate-record", "name": "Mandate and its source", "description": "What it may do, and the instrument that says so.", "questions": [ { "id": "mandate-record-q01", "text": "What is the mandate of quartet, and which founding or governing instrument grants it?", "kind": "provenance" }, { "id": "mandate-record-q02", "text": "What lies outside the mandate, and what should an agent do when asked for it?", "kind": "action" } ] } ] } ] }, { "id": "governance-and-membership", "name": "Governance, membership and decision rights", "description": "Who decides in quartet and who belongs to it.", "rationale": "Authority inside an organisation is held by roles, not people, and an agent needs to know which role can commit it.", "layers": [ { "id": "decision-rights", "name": "Decision rights", "description": "Bodies, offices and what each may bind.", "findings": [ { "id": "authority-map", "name": "Who may bind the organisation", "description": "The offices that can commit it and their limits.", "questions": [ { "id": "authority-map-q01", "text": "Which bodies or offices of quartet may take which decisions, and up to what limit?", "kind": "definition" }, { "id": "authority-map-q02", "text": "What evidence shows that a given person currently holds that office?", "kind": "provenance" } ] } ] }, { "id": "membership", "name": "Membership and affiliation", "description": "Who counts as part of it and on what terms.", "findings": [ { "id": "membership-rules", "name": "Membership and its evidence", "description": "Classes of member, how membership starts and ends.", "questions": [ { "id": "membership-rules-q01", "text": "What kinds of membership or affiliation does quartet have, and how does each begin and end?", "kind": "definition" }, { "id": "membership-rules-q02", "text": "What may a member do in its name, and what may they not?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a quartet 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 quartet and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a quartet, 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 quartet, 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 quartet 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 quartet is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a quartet, 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 quartet, 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 quartet 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 } } } }