{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-10-22T12:45:01Z",
    "providers": [
      "Claude"
    ],
    "breadth": "researched by Claude against the sources listed below",
    "pass": 2,
    "wave": 5,
    "engine": "claude",
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-22T12:54:40+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "4 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q8343",
    "registryId": "vr.tr.clarinet",
    "name": "clarinet",
    "version": "0.2.0-wave.5",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.OBJ"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q8343/",
  "model": {
    "registry_id": "vr.tr.clarinet",
    "name": "clarinet",
    "purpose": "Let an agent describe clarinets, their family, construction and history, from organological sources, without endorsing brands.",
    "definition": "A woodwind instrument with a single reed on a mouthpiece and a mostly cylindrical bore, which overblows at the twelfth; the clarinet family ranges from small high clarinets (E-flat) through the common B-flat and A clarinets to bass, contra-alto and contrabass clarinets, and the related basset horn.",
    "what_it_is_for": "Making music.",
    "affordances": [
      "describe the family and ranges",
      "explain construction and key systems",
      "explain history",
      "explain transposition"
    ],
    "distinguishing_features": [
      "Overblows at the twelfth because the cylindrical bore acts as a closed pipe.",
      "Developed from the chalumeau around 1700, usually credited to Johann Christoph Denner.",
      "Boehm and Oehler key systems are the main modern systems."
    ],
    "appearance": "Usually a black or dark tube with metal keys, a bell and a mouthpiece with a single reed; historical boxwood, metal and synthetic bodies also occur, and larger members are curved.",
    "visual_identification": [
      "Single-reed instrument with cylindrical body and many keys"
    ],
    "physical_properties": [
      {
        "quantity": "written range of B-flat clarinet",
        "typical_range": "about E3 to C7 (middle C = C4)",
        "unit": "",
        "note": "sounds a major second lower; the top depends on player"
      }
    ],
    "families_and_kinds": [
      "E-flat clarinet",
      "B-flat clarinet",
      "A clarinet",
      "basset clarinet",
      "basset horn",
      "alto clarinet",
      "bass clarinet",
      "contra-alto and contrabass clarinets",
      "historical clarinets"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "woodwind instrument",
        "why": "instrument"
      },
      {
        "relation": "is classified as",
        "target": "single-reed aerophone (H-S 422.2)",
        "why": "classification"
      },
      {
        "relation": "is related to",
        "target": "chalumeau",
        "why": "ancestor"
      },
      {
        "relation": "is related to",
        "target": "saxophone",
        "why": "single-reed instrument"
      }
    ],
    "identifiers": [
      {
        "scheme": "Hornbostel-Sachs",
        "value_or_pattern": "422.211.2",
        "note": "individual single-reed pipe with cylindrical bore and fingerholes"
      }
    ],
    "standards_and_regulation": [
      "Hornbostel-Sachs classification (MIMO revision 2011), an organological classification"
    ],
    "failure_modes_and_hazards": [
      "Cracked wooden bodies from temperature changes",
      "Hygiene of shared mouthpieces"
    ],
    "agent_conduct": {
      "may": [
        "describe instruments"
      ],
      "must_not": [
        "endorse brands"
      ],
      "requires_human": []
    },
    "ethics": {
      "considerations": [
        "sustainable sourcing of African blackwood"
      ],
      "affected_parties": [
        "musicians",
        "forests"
      ]
    },
    "owners": {
      "steward": "nobody; an instrument type",
      "master_systems": [
        "MIMO"
      ]
    },
    "facets_not_applicable": {},
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": []
  },
  "sources": [
    {
      "id": "SRC-001",
      "title": "Q8343",
      "publisher": "Wikidata",
      "url": "https://www.wikidata.org/wiki/Q8343",
      "what_it_supports": "identity of the registry item, labels and sitelinks",
      "url_status": "live"
    },
    {
      "id": "SRC-002",
      "title": "Clarinet",
      "publisher": "Wikipedia",
      "url": "https://en.wikipedia.org/wiki/Clarinet",
      "what_it_supports": "general description of the subject",
      "url_status": "live"
    },
    {
      "id": "SRC-003",
      "title": "Revision of the Hornbostel-Sachs Classification of Musical Instruments by the MIMO Consortium",
      "publisher": "MIMO Consortium",
      "url": "https://mimo-international.com/documents/Hornbostel%20Sachs.pdf",
      "what_it_supports": "Exact scope of 422.2, 422.211 and 422.211.2; distinction from saxophones and sets of reedpipes.",
      "url_status": "unverified"
    },
    {
      "id": "SRC-004",
      "title": "Clarinet Acoustics: An Introduction",
      "publisher": "University of New South Wales",
      "url": "https://www.phys.unsw.edu.au/jw/clarinetacoustics.html",
      "what_it_supports": "Single-reed operation, approximately cylindrical bore, twelfth overblowing, registers and B-flat transposition.",
      "url_status": "unverified"
    },
    {
      "id": "SRC-005",
      "title": "Development of the Clarinet",
      "publisher": "Northern Illinois University",
      "url": "https://www.niu.edu/gbarrett/resources/development.shtml",
      "what_it_supports": "Chalumeau ancestry, Denner attribution, historical construction and modern key-system development.",
      "url_status": "live"
    },
    {
      "id": "SRC-006",
      "title": "Clarinet",
      "publisher": "Musical Instruments Museum, Brussels",
      "url": "https://www.mim.be/en/collection-piece/clarinet",
      "what_it_supports": "Early surviving Jacob Denner clarinet, boxwood construction and uncertainty surrounding the inventor attribution.",
      "url_status": "live"
    },
    {
      "id": "SRC-007",
      "title": "MIR482: Metal Bass Clarinet in B-flat",
      "publisher": "Germanisches Nationalmuseum",
      "url": "https://rueckportal.gnm.de/wisski/navigate/514/view",
      "what_it_supports": "Historical metal construction, bass-clarinet form and classification 422.211.2.",
      "url_status": "unverified"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "instrument",
        "name": "Instrument",
        "description": "Which clarinet.",
        "rationale": "Family member first.",
        "layers": [
          {
            "id": "member",
            "name": "Member",
            "description": "Size and key.",
            "findings": [
              {
                "id": "member",
                "name": "Member",
                "description": "Name and key.",
                "questions": [
                  {
                    "text": "Which clarinet?",
                    "kind": "provenance"
                  },
                  {
                    "text": "In which key?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "system",
            "name": "System",
            "description": "Key system.",
            "findings": [
              {
                "id": "key-system",
                "name": "Key system",
                "description": "Name.",
                "questions": [
                  {
                    "text": "Boehm or Oehler system?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Per which source?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "construction",
        "name": "Construction",
        "description": "Materials.",
        "rationale": "Materials vary.",
        "layers": [
          {
            "id": "body",
            "name": "Body",
            "description": "Material.",
            "findings": [
              {
                "id": "body",
                "name": "Body",
                "description": "Material.",
                "questions": [
                  {
                    "text": "Which material?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Per the maker?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "mouthpiece-and-reed",
            "name": "Mouthpiece and reed",
            "description": "Sound source.",
            "findings": [
              {
                "id": "mouthpiece",
                "name": "Mouthpiece",
                "description": "Type.",
                "questions": [
                  {
                    "text": "Which mouthpiece and reed?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Per which source?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "music",
        "name": "Music",
        "description": "Range and use.",
        "rationale": "Range is documented.",
        "layers": [
          {
            "id": "range",
            "name": "Range",
            "description": "Notes.",
            "findings": [
              {
                "id": "range",
                "name": "Range",
                "description": "Written and sounding.",
                "questions": [
                  {
                    "text": "What range?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Transposing how?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "repertoire",
            "name": "Repertoire",
            "description": "Music.",
            "findings": [
              {
                "id": "repertoire",
                "name": "Repertoire",
                "description": "Works.",
                "questions": [
                  {
                    "text": "Which notable works?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Per which source?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "history",
        "name": "History",
        "description": "Development.",
        "rationale": "History has sources.",
        "layers": [
          {
            "id": "origin",
            "name": "Origin",
            "description": "Denner.",
            "findings": [
              {
                "id": "origin",
                "name": "Origin",
                "description": "Maker and date.",
                "questions": [
                  {
                    "text": "Who developed it?",
                    "kind": "provenance"
                  },
                  {
                    "text": "When?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "collections",
            "name": "Collections",
            "description": "Museums.",
            "findings": [
              {
                "id": "collection",
                "name": "Collection",
                "description": "Museum.",
                "questions": [
                  {
                    "text": "Which museums hold historical examples?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which MIMO record?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "The registry merges historical clarinets and replicas; they can be linked as kinds."
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}