{ "model": { "rank": 2536, "code": "thing-q47369", "model_id": "vr.tr.harp", "name": "harp", "purpose": "Enable an AI agent to recognise a harp, assess its musical and physical readiness, and decide which playing, tuning, maintenance and handling actions are appropriate.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.OBJ", "industry": "", "version": "", "url": "/models/thing/q47369/", "tier": 2, "score": 103, "payload": { "layer": "wikidata", "aliases": [ "Bohemian harp", "chromatic harp", "ayumaa", "folk harp", "epigonion", "multi-course harp", "frame harp", "open harp", "khutang", "kugo", "arpa doppia" ], "aliasCount": 11, "merged": 11, "knownIn": 103, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.harp", "source": { "dataset": "wikidata", "item": "Q47369", "url": "https://www.wikidata.org/wiki/Q47369", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T09:53:11Z", "providers": [ "Codex", "Grok" ], "missingProviders": [], "pass": 2, "cost": { "grok": { "usd": 0.0109973, "turns": 1, "seconds": 185.7, "error": null }, "codex": { "seconds": 83, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\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: 01a07b46-110f-7a21-91d7-a9dc2bcad314\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: harp\nRegistry id: vr.tr.harp\nPlane / domain: PHY / PHY.OBJ\nRegistry definition: (none recorded)\nNames folded into this entry: (none)\n\nA Vercy model s" } } }, "metaModel": { "id": "THING-Q47369", "registryId": "vr.tr.harp", "name": "harp", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.OBJ" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q47369/", "model": { "registry_id": "vr.tr.harp", "name": "harp", "purpose": "Enable an AI agent to recognise a harp, assess its musical and physical readiness, and decide which playing, tuning, maintenance and handling actions are appropriate.", "definition": "A composite chordophone in which the plane of the strings is perpendicular to the soundboard, the strings running from a neck (with or without a forepillar) to a resonator and normally sounded by plucking.", "scope_statement": "This model owns an individual harp as a stringed musical instrument, including its string arrangement, resonating structure, pitch-changing mechanisms, amplification interfaces and condition-dependent operating limits.", "in_scope": [ "Harp identity, construction type and intended playing configuration", "String courses, tuning assignments and supported musical range", "Soundboard, resonating body and structures carrying string tension", "Levers, pedals or other fitted pitch-changing mechanisms", "Acoustic response, pickups and instrument-mounted electronics", "Readiness for playing, restringing, adjustment and transport" ], "out_of_scope": [ "Scores, compositions and musical interpretations", "A player's technique, health and learning history", "Room acoustics and venue sound systems", "Manufacturing businesses, ownership contracts and market valuation", "Separate cases, benches, tuning tools and external amplifiers as objects" ], "distinguishing_features": [ "Has strings running between a string-bearing neck or equivalent upper member and a resonating body, with the string plane approximately perpendicular to the soundboard; a zither's strings run approximately parallel to its soundboard.", "Normally assigns different pitches to separate open strings rather than obtaining its ordinary scale by stopping strings against a fingerboard as on a guitar.", "Distinguish a lyre by tracing the string supports: its strings run from the body toward a crossbar carried by arms, rather than the characteristic harp neck-to-body arrangement.", "Do not require a forepillar, pedals or levers for recognition; establish the harp's construction type from its actual string and body geometry.", "Exclude objects called a jaw harp or mouth harp when sound is generated by a vibrating tongue rather than an array of tensioned strings." ], "characteristics": [ { "name": "Construction type", "kind": "category", "unit_or_values": "Observed construction and documented tradition; unknown permitted", "why_it_matters": "Determines which structural and operating expectations apply without treating one harp tradition as universal." }, { "name": "String arrangement", "kind": "category", "unit_or_values": "Single row, multiple rows, crossed rows or other observed arrangement", "why_it_matters": "Affects string identification, hand access and the means of obtaining different pitches." }, { "name": "Installed and intended string count", "kind": "measurement", "unit_or_values": "Number of strings, with missing positions identified separately", "why_it_matters": "Distinguishes an incomplete instrument from a harp designed with fewer strings." }, { "name": "String specification by position", "kind": "relation", "unit_or_values": "String position linked to material, diameter or gauge, construction and approved replacement specification", "why_it_matters": "Supports appropriate replacements and avoids assuming that equal-pitch strings are interchangeable." }, { "name": "Pitch assignment and tuning reference", "kind": "relation", "unit_or_values": "String position linked to intended pitch or frequency in Hz, tuning system and mechanism setting", "why_it_matters": "Makes tuning and musical range interpretable for this particular harp." }, { "name": "Pitch-control configuration", "kind": "category", "unit_or_values": "None, individual levers, pedal mechanism, other documented mechanism or unknown", "why_it_matters": "Determines how pitch changes may be made and which settings must accompany a tuning assessment." }, { "name": "Tuning deviation", "kind": "measurement", "unit_or_values": "Cents from each assigned target, recorded with mechanism setting and measurement time", "why_it_matters": "Identifies whether the harp is ready for its intended use and whether tuning is stable." }, { "name": "Load-bearing structure condition", "kind": "state", "unit_or_values": "Observed condition of neck, body, soundboard, joints and forepillar if present; assessed, uncertain or action-restricted", "why_it_matters": "Visible changes may require inspection before further tuning, playing or handling." }, { "name": "Pitch-mechanism response", "kind": "state", "unit_or_values": "Per control: movement, engagement, achieved pitch change, noise and unresolved fault", "why_it_matters": "Separates basic tuning errors from problems requiring mechanism adjustment." }, { "name": "Playing and transport envelope", "kind": "measurement", "unit_or_values": "Mass in kg and dimensions in mm, including required playing and mechanism clearance", "why_it_matters": "Supports suitable positioning, support and movement arrangements." }, { "name": "Sound-output configuration", "kind": "category", "unit_or_values": "Acoustic output, fitted pickups, active electronics and documented connections", "why_it_matters": "Determines whether sound checks require only acoustic inspection or also power and signal-path checks." } ], "affordances": [ "Identify playable strings and available pitches for a stated tuning and control configuration.", "Tune strings to documented targets using compatible tools and an appropriate procedure.", "Operate fitted pitch controls within their documented range and assess the resulting pitch changes.", "Pluck and, where appropriate, amplify the harp to assess response, sustain and unwanted noise.", "Replace identified strings or request specialist adjustment when the required specification and procedure are established.", "Position, support, pack and move the harp according to its construction and documented handling requirements." ] }, "sources": [ { "id": "hs-1914", "title": "Systematik der Musikinstrumente: Ein Versuch - Erich M. von Hornbostel and Curt Sachs, Zeitschrift für Ethnologie (Berliner Gesellschaft für Anthropologie, Ethnologie und Urgeschichte)", "url": "", "what_it_supports": "Organological definition of harps as composite chordophones whose strings stand perpendicular to the soundboard (class 322), and the open-harp versus frame-harp split." }, { "id": "grove-harp", "title": "Harp - Grove Music Online (Oxford University Press)", "url": "", "what_it_supports": "Concert, folk, historical and regional harp types; pedal mechanism; orchestral use; distinction from lyres and zithers." }, { "id": "rensch-2007", "title": "Harps and Harpists - Roslyn Rensch (Indiana University Press, 2nd ed. 2007)", "url": "", "what_it_supports": "Construction, stringing, concert-harp dimensions, and the European pedal-harp lineage from Érard onward." }, { "id": "britannica-harp", "title": "Harp - Encyclopaedia Britannica (Encyclopædia Britannica, Inc.)", "url": "https://www.britannica.com/art/harp", "what_it_supports": "General morphology, historical arched and angular forms, and the modern orchestral harp as the default Western reference.", "url_status": "blocked" } ], "structure": { "bundles": [ { "id": "harp-identity-and-geometry", "name": "Harp identity and geometry", "description": "Establishes what kind of harp is present and how its strings relate to its body and supports.", "rationale": "Recognition must accommodate different harp traditions while distinguishing neighbouring string instruments.", "layers": [ { "id": "instrument-recognition", "name": "Instrument recognition", "description": "Tests the physical basis for identifying the object as a harp.", "findings": [ { "id": "string-to-body-geometry", "name": "String-to-body geometry", "description": "Record the string plane, attachment points and relationship to the soundboard as evidence for identification.", "questions": [ { "text": "How do the strings run between the neck or upper support and the resonating body?", "kind": "definition", "id": "string-to-body-geometry-q01" }, { "text": "What observed geometry distinguishes this instrument from a lyre, zither or fingerboard instrument?", "kind": "boundary", "id": "string-to-body-geometry-q02" } ] } ] }, { "id": "construction-and-tradition", "name": "Construction and tradition", "description": "Places the individual instrument within an evidenced construction and use context.", "findings": [ { "id": "documented-harp-configuration", "name": "Documented harp configuration", "description": "Record maker or tradition attribution, string-row arrangement and structural members without inferring missing features from a familiar harp type.", "questions": [ { "text": "Which markings, maker records or other evidence identify this harp's type and intended configuration?", "kind": "provenance", "id": "documented-harp-configuration-q01" }, { "text": "How many string rows are present, how are they arranged, and is a forepillar fitted?", "kind": "definition", "id": "documented-harp-configuration-q02" } ] } ] } ] }, { "id": "strings-and-tuning", "name": "Strings and tuning", "description": "Defines the harp's string inventory, pitch map and tuning condition.", "rationale": "A harp's usable range and safe restringing decisions depend on position-specific string and tuning information.", "layers": [ { "id": "string-position-map", "name": "String position map", "description": "Identifies each intended string position and its required string.", "findings": [ { "id": "string-specifications-and-gaps", "name": "String specifications and gaps", "description": "Record installed strings, absent or damaged strings, identification markings and supported replacement specifications.", "questions": [ { "text": "Which string positions exist, and which contain missing, broken or visibly deteriorated strings?", "kind": "measurement", "id": "string-specifications-and-gaps-q01" }, { "text": "What evidence establishes the material, gauge and construction required at each position?", "kind": "provenance", "id": "string-specifications-and-gaps-q02" } ] } ] }, { "id": "pitch-map-and-stability", "name": "Pitch map and stability", "description": "Relates measured string pitches to the intended tuning and its persistence.", "findings": [ { "id": "tuning-targets-and-drift", "name": "Tuning targets and drift", "description": "Record intended pitches, tuning reference, control settings and changes in measured pitch over a stated interval.", "questions": [ { "text": "What target pitch belongs to each string, under which tuning system and pitch-control settings?", "kind": "definition", "id": "tuning-targets-and-drift-q01" }, { "text": "How far does each assessed string deviate from its target, and how does that deviation change after tuning?", "kind": "measurement", "id": "tuning-targets-and-drift-q02" } ] } ] } ] }, { "id": "pitch-changing-controls", "name": "Pitch-changing controls", "description": "Captures fitted mechanisms for changing string pitch and the limits of their operation.", "rationale": "The same string may have different available pitches, and tuning readiness does not establish mechanism readiness.", "layers": [ { "id": "control-to-string-mapping", "name": "Control-to-string mapping", "description": "Establishes which strings each lever, pedal or other control affects.", "findings": [ { "id": "available-control-states", "name": "Available control states", "description": "Record each control's positions, affected strings and intended pitch effects, including an explicit absence of mechanisms when applicable.", "questions": [ { "text": "Which pitch-changing controls are fitted, and which strings does each control affect?", "kind": "definition", "id": "available-control-states-q01" }, { "text": "What pitches are intended at each supported control position?", "kind": "definition", "id": "available-control-states-q02" } ] } ] }, { "id": "mechanism-function-and-adjustment", "name": "Mechanism function and adjustment", "description": "Assesses whether fitted controls produce their intended effects reliably.", "findings": [ { "id": "engagement-and-pitch-accuracy", "name": "Engagement and pitch accuracy", "description": "Record pitch accuracy, movement faults and unwanted sounds associated with control operation.", "questions": [ { "text": "At each tested setting, what pitch error, incomplete engagement, sticking or unwanted noise occurs?", "kind": "measurement", "id": "engagement-and-pitch-accuracy-q01" }, { "text": "Which observed faults permit documented user adjustment, and which require a harp technician?", "kind": "action", "id": "engagement-and-pitch-accuracy-q02" } ] } ] } ] }, { "id": "tension-bearing-body-and-sound", "name": "Tension-bearing body and sound", "description": "Assesses the structures supporting string tension and the harp's acoustic or electrical response.", "rationale": "A harp can retain its appearance while structural movement or sound-production faults limit its use.", "layers": [ { "id": "structural-condition", "name": "Structural condition", "description": "Examines the neck, string anchors, soundboard, body and other fitted load-bearing members.", "findings": [ { "id": "deformation-joints-and-anchors", "name": "Deformation, joints and anchors", "description": "Record cracks, joint movement, anchor condition and changes in shape, distinguishing observations from a qualified assessment.", "questions": [ { "text": "What cracking, separation, distortion or anchor movement is visible, and what earlier observations allow comparison?", "kind": "measurement", "id": "deformation-joints-and-anchors-q01" }, { "text": "What documented limits or qualified assessment determine whether tuning or playing may continue?", "kind": "action", "id": "deformation-joints-and-anchors-q02" } ] } ] }, { "id": "sound-production", "name": "Sound production", "description": "Assesses response across the strings and through any fitted electrical output.", "findings": [ { "id": "response-and-unwanted-sound", "name": "Response and unwanted sound", "description": "Record weak or uneven response, buzzing, rattling and electrical faults under reproducible playing and control conditions.", "questions": [ { "text": "Which strings, playing intensities or control settings produce weak response, buzzing or rattling?", "kind": "measurement", "id": "response-and-unwanted-sound-q01" }, { "text": "If pickups or electronics are fitted, does the fault occur acoustically, electrically or through both outputs?", "kind": "boundary", "id": "response-and-unwanted-sound-q02" } ] } ] } ] }, { "id": "playing-care-and-movement", "name": "Playing, care and movement", "description": "Connects the harp's construction and present condition to practical use, care and transport decisions.", "rationale": "A playable harp still needs appropriate support, string access and handling arrangements for its particular form.", "layers": [ { "id": "playing-configuration", "name": "Playing configuration", "description": "Records how the harp is supported and accessed during intended use.", "findings": [ { "id": "support-and-control-clearance", "name": "Support and control clearance", "description": "Record intended orientation, support contacts, stability and access to strings and fitted controls.", "questions": [ { "text": "In its intended playing orientation, what supports the harp and what space is needed to reach its strings and controls?", "kind": "measurement", "id": "support-and-control-clearance-q01" }, { "text": "Which positioning or support changes are needed before this harp can be played in the proposed setting?", "kind": "action", "id": "support-and-control-clearance-q02" } ] } ] }, { "id": "care-and-transport-limits", "name": "Care and transport limits", "description": "Establishes instrument-specific procedures for routine care and movement.", "findings": [ { "id": "supported-maintenance-and-handling", "name": "Supported maintenance and handling", "description": "Record evidenced string-changing, environmental and handling requirements, including unresolved limits.", "questions": [ { "text": "What maker guidance or qualified advice establishes suitable string-changing procedures, environmental limits and lifting or packing methods?", "kind": "provenance", "id": "supported-maintenance-and-handling-q01" }, { "text": "Given the harp's mass, geometry and condition, what preparation and assistance are required for the proposed maintenance or move?", "kind": "action", "id": "supported-maintenance-and-handling-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-kinds", "name": "Kinds and varieties", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Double-action pedal concert harp (orchestral frame harp with seven pedals and three string discs per string)", "Single-action pedal harp (historical predecessor, one disc per string)", "Lever harp (Celtic/folk harp; each string sharpened by a hand-operated cam)", "Wire-strung Gaelic harp (cláirseach/clàrsach)", "Welsh triple harp (telyn deires; three parallel ranks, chromatic by crossing ranks)", "Latin American diatonic harps (Paraguayan, llanera, jarocha)", "Open harps without a pillar (arched/bow harps and angular harps, including the Burmese saung)", "Electric and electroacoustic harps" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of harp this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "scheme": "Wikidata", "value_or_pattern": "Q34528", "note": "Item for the musical-instrument harp (not the lampshade frame or the harmonica sense)." }, { "scheme": "Hornbostel-Sachs", "value_or_pattern": "322", "note": "Harps as a class; 322.1 open harps, 322.2 frame harps; further digits mark tuning action (MIMO revision)." }, { "scheme": "Harmonized System (WCO)", "value_or_pattern": "9202.90", "note": "Other string musical instruments not played with a bow; harps are classified here with guitars, not with bowed strings (9202.10)." }, { "scheme": "General MIDI", "value_or_pattern": "program 47 (1-based; 46 if 0-based)", "note": "Orchestral harp patch in the GM sound set." }, { "scheme": "LCSH", "value_or_pattern": "Harp", "note": "Library of Congress Subject Headings authorized form for the instrument." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of harp this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Hornbostel-Sachs class 322, as revised by the MIMO consortium for museum cataloguing (scholarly classification, not a product law).", "World Customs Organization Harmonized System heading 9202, subheading 9202.90, for tariff classification of harps.", "UNESCO Intangible Cultural Heritage listing 'Irish harping' (Representative List, 2019) for the living Irish practice, not for the object as a manufactured good.", "CITES (CITES Secretariat and national implementing statutes) can apply to historical instruments that incorporate ivory, tortoiseshell, or listed rosewoods." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of harp this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "One or two double-action pedal harps in a symphony or opera orchestra, covering glissandi, harmonics, and pedal-changed chromatic writing.", "Solo recital, chamber music, and film/studio scoring on the concert harp.", "Traditional dance and song accompaniment on lever harps in Irish, Scottish, Welsh and Breton sessions.", "Paraguayan, Venezuelan llanero and Mexican jarocho ensembles, often with the player standing and using fingernails.", "Weddings, funerals, hospital and palliative settings where a portable lever harp is carried to the bedside.", "Conservatory teaching (typically 47-string pedal harp) and amateur tuition on 22-38-string lever harps.", "Early-music performance on reconstructed Gothic, Renaissance, Baroque triple, and single-action pedal instruments.", "Airline and truck transport of a ~36 kg concert harp in a flight case, often as cargo rather than cabin baggage." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of harp this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "quantity": "String count", "typical_range": "22-47 (lap/folk to full concert)", "unit": "strings" }, { "quantity": "Overall height", "typical_range": "90-190", "unit": "cm" }, { "quantity": "Mass", "typical_range": "5-40", "unit": "kg" }, { "quantity": "Sounding compass (concert pedal harp)", "typical_range": "C♭1-G♯7 (about 6.5 octaves, 47 strings)", "unit": "pitch" }, { "quantity": "Total static string tension (concert harp)", "typical_range": "9-14", "unit": "kN" }, { "quantity": "Pedal count", "typical_range": "0 or 7", "unit": "pedals" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of harp this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Soundboard cracking, bellying or glue-joint failure under sustained string tension, worsened by humidity swings.", "Broken strings, especially high treble gut or nylon, and sudden detuning of gut in damp or dry rooms.", "Pedal-box and disc-regulation failure: buzz, rattles, or a string that will not seat in flat/natural/sharp.", "Neck or column damage and joint loosening in transport; the instrument is tall, heavy and top-heavy.", "Lever buzz, slipped cams, or broken sharping levers on folk harps.", "Tip-over onto a player, bystander or the soundboard; also pinched fingers in pedals and levers.", "Playing-related musculoskeletal strain (shoulders, wrists, back) from reach, weight of the instrument and repetition.", "Historical fittings of ivory, bone or restricted woods that create legal and conservation constraints on repair and crossing borders." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of harp this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Ireland and Scotland distinguish the wire-strung cláirseach/clàrsach from the modern nylon- or gut-strung 'Celtic' lever harp; 'Irish harping' is a UNESCO-listed practice.", "Wales treats the triple harp (telyn deires) as the national form; the pedal harp is the concert default, not the folk default.", "Paraguay uses the arpa paraguaya as a national emblem, played standing, diatonic, often with nails; neighbouring llanera (Venezuela/Colombia) and jarocha (Veracruz) harps differ in size, stringing and repertory.", "Mainland European and North American orchestras default to the French Érard-type double-action pedal harp (Lyon & Healy, Salvi, Camac, etc.).", "Sahelian and Nile-basin traditions use arched open harps; Myanmar's saung gauk is the surviving court arched harp.", "In blues and harmonica trade usage, 'harp' means a mouth organ, not a chordophone - a naming collision, not a regional instrument variant." ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of harp this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "name": "Lyre", "difference": "A lyre's strings run from a yoke held by two arms (Hornbostel-Sachs 321); a harp's strings leave a neck to a resonator in a plane perpendicular to the soundboard (322)." }, { "name": "Kora (and other bridge harps / harp-lutes)", "difference": "Kora strings pass over a standing bridge on a skin-faced calabash; they are not attached across an open neck-to-soundboard plane as on a true harp." }, { "name": "Zither (koto, psaltery, concert zither)", "difference": "Zither strings lie parallel to the soundboard and there is no neck; harp strings stand off the soundboard from a neck." }, { "name": "Guitar and other lutes", "difference": "Lute strings run parallel to the soundboard along a neck with a fingerboard; harp strings do not lie along a fingerboard." }, { "name": "Harmonica (blues harp)", "difference": "A free-reed aerophone sounded by breath; no strings. Same vernacular name, unrelated object." }, { "name": "Jew's harp / jaw harp", "difference": "A lamellophone held to the mouth; the 'harp' in the name is historical, not organological." }, { "name": "Lamp harp", "difference": "A U-shaped shade-support on a lighting fixture; test is function (holds a finial and shade) versus a taut string choir on a resonator." }, { "name": "Aeolian harp", "difference": "Usually a box zither sounded by wind across the strings, not a plucked frame or open harp." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of harp this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does an existing Vercy world model already cover harp, requiring this registry entry to link to it rather than establish a separate model?", "Which harp traditions and unusual constructions must the recognition tests accommodate, and where are the boundaries with lyres and hybrid instruments?", "Which authoritative sources establish string specifications, tuning limits and replacement procedures for each supported harp type?", "How should normal construction-dependent soundboard or neck deformation be distinguished from damage requiring restricted use?", "Which measurable tolerances for tuning stability, mechanism accuracy and acoustic response are justified for different intended uses?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 18, "questions": 28 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "device, machine or tool", "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 harp, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise a harp, assess its musical and physical readiness, and decide which playing, tuning, maintenance and handling actions are appropriate.", "characteristics": { "substance": "material", "origin": "manufactured", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: Bohemian harp, chromatic harp, ayumaa, folk harp, epigonion, multi-course harp, frame harp, open harp, khutang, kugo, arpa doppia.", "11 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 103 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 harp, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "Mobility varies between examples.", "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": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Recognised by form, by the arrangement of its controls, and by markings - a plate, a model number, a certification mark. Form alone rarely separates two models that do very different things." ], "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": [ "Bohemian harp", "chromatic harp", "ayumaa", "folk harp", "epigonion", "multi-course harp", "frame harp", "open harp", "khutang", "kugo", "arpa doppia" ] } ], "standing": "Described in 103 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 11 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 harp from another, and a harp 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 harp, 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 harp, 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 harp 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 harp, 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 harp, 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 harp 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 harp 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 harp, 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 harp, 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 harp 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 harp from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a harp, 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 harp, 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 harp is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "form-and-composition", "name": "Form, composition and condition", "description": "What a harp is made of, what shape and size it takes, and what state it is in.", "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.", "layers": [ { "id": "form-and-dimensions", "name": "Form and dimensions", "description": "Shape, size, mass and the ranges these take across examples.", "findings": [ { "id": "measurable-dimensions", "name": "Measurable dimensions and their units", "description": "The quantities worth recording and the units they are recorded in.", "questions": [ { "id": "measurable-dimensions-q01", "text": "What identifies and describes the dimensions of a harp, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "measurable-dimensions-q02", "text": "Who or what asserted this about the dimensions of a harp, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "measurable-dimensions-q03", "text": "What may an agent decide or do once the dimensions of a harp is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "material-and-composition", "name": "Material and composition", "description": "Materials, parts and how they are put together.", "findings": [ { "id": "parts-and-materials", "name": "Parts and materials", "description": "What a harp is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a harp, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "parts-and-materials-q02", "text": "Who or what asserted this about the composition of a harp, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "parts-and-materials-q03", "text": "What may an agent decide or do once the composition of a harp is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "condition-and-integrity", "name": "Condition and integrity", "description": "Wear, damage, health and the difference between working and broken.", "findings": [ { "id": "condition-assessment", "name": "Condition, damage and health", "description": "How the condition of a harp is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a harp, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "condition-assessment-q02", "text": "Who or what asserted this about the condition of a harp, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "condition-assessment-q03", "text": "What may an agent decide or do once the condition of a harp is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "place-and-movement", "name": "Place and movement", "description": "Where a harp is, how it got there and where it may go (varies).", "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.", "layers": [ { "id": "location-and-placement", "name": "Location and placement", "description": "Position, containment and the reference frame the position is given in.", "findings": [ { "id": "position-and-frame", "name": "Position, container and reference frame", "description": "Where a harp is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a harp, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "position-and-frame-q02", "text": "Who or what asserted this about the location of a harp, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "position-and-frame-q03", "text": "What may an agent decide or do once the location of a harp is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "movement-and-transfer", "name": "Movement and transfer", "description": "How a harp is carried, installed or relocated.", "findings": [ { "id": "movement-events", "name": "Movement events and constraints", "description": "What counts as a movement, what records it and what limits it.", "questions": [ { "id": "movement-events-q01", "text": "What identifies and describes the movement of a harp, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "movement-events-q02", "text": "Who or what asserted this about the movement of a harp, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "movement-events-q03", "text": "What may an agent decide or do once the movement of a harp 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 harp 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 harp between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a harp, 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 harp, 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 harp 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 harp, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a harp 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 harp, 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 harp, 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 harp is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "function-and-principle", "name": "Function and operating principle", "description": "What harp is for and how it achieves it.", "rationale": "Two devices with the same name can work on different principles, and the principle is what predicts failure and constrains use.", "layers": [ { "id": "intended-function", "name": "Intended function", "description": "The job it does, and the jobs it is used for anyway.", "findings": [ { "id": "function-record", "name": "Function, principle and variants", "description": "What it does, how, and which variants do it differently.", "questions": [ { "id": "function-record-q01", "text": "What function does harp perform, on what operating principle, and which variants differ in that principle?", "kind": "definition" }, { "id": "function-record-q02", "text": "What use falls outside the intended function but happens in practice?", "kind": "boundary" } ] } ] }, { "id": "capacity-and-rating", "name": "Capacity and rating", "description": "The numbers that say what it can do and where it stops.", "findings": [ { "id": "ratings", "name": "Ratings and their conditions", "description": "Rated capacity, power, throughput and the conditions each assumes.", "questions": [ { "id": "ratings-q01", "text": "What ratings characterise harp, in what units, and under what stated conditions?", "kind": "measurement" }, { "id": "ratings-q02", "text": "What happens beyond the rating - degradation, refusal, damage - and how is that detected?", "kind": "action" } ] } ] } ] }, { "id": "operation-and-state", "name": "Operation, controls and state", "description": "How harp is operated and what state it is in right now.", "rationale": "An agent acting on a device needs its current state and the controls that change it, not just its specification.", "layers": [ { "id": "controls-and-modes", "name": "Controls and modes", "description": "What can be set, what that changes, and what is interlocked.", "findings": [ { "id": "control-surface", "name": "Control surface and interlocks", "description": "The settings available and the conditions that block them.", "questions": [ { "id": "control-surface-q01", "text": "What controls and modes does harp have, and what does each change?", "kind": "definition" }, { "id": "control-surface-q02", "text": "Which actions are interlocked or forbidden in which state, and what must be true before acting?", "kind": "action" } ] } ] }, { "id": "condition-and-maintenance", "name": "Condition and maintenance", "description": "Wear, service intervals, consumables and the line between working and broken.", "findings": [ { "id": "service-record", "name": "Condition, service and consumables", "description": "What is consumed, what is serviced, and how condition is judged.", "questions": [ { "id": "service-record-q01", "text": "What consumables and service does harp need, at what interval, and on whose authority?", "kind": "measurement" }, { "id": "service-record-q02", "text": "What evidence separates a unit that is working from one that is out of service?", "kind": "boundary" } ] } ] } ] }, { "id": "kind-model-unit", "name": "Kind, model and unit", "description": "Whether a claim about harp is about the kind, a product line, or one physical unit.", "rationale": "This is the boundary most often got wrong for made things, and getting it wrong mixes a catalogue entry with the machine in the yard.", "layers": [ { "id": "level-of-reference", "name": "Level of reference", "description": "The three levels and what belongs at each.", "findings": [ { "id": "level-rules", "name": "What belongs to kind, model and unit", "description": "Which properties are shared by all of them and which are not.", "questions": [ { "id": "level-rules-q01", "text": "Which facts about harp hold for every one of them, which for a model, and which only for one unit?", "kind": "boundary" }, { "id": "level-rules-q02", "text": "What identifies an individual unit, and what should an agent do when it has only the kind?", "kind": "action" } ] } ] }, { "id": "standards-and-conformity", "name": "Standards and conformity", "description": "The standards a working example must meet and who attests it.", "findings": [ { "id": "conformity", "name": "Standards, marks and attestation", "description": "Which standard applies, who certifies, and what the mark means.", "questions": [ { "id": "conformity-q01", "text": "Which standards govern harp, issued by whom, and what does conformity actually assert?", "kind": "provenance" }, { "id": "conformity-q02", "text": "What may an agent conclude from a certification mark, and what may it not?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a harp 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 harp and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a harp, 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 harp, 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 harp 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 harp is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a harp, 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 harp, 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 harp is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 8, "layers": 17, "findings": 19, "questions": 51 } } } }