{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T05:54:40Z",
    "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": 1,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T16:30:00Z",
      "ingestedAt": "2026-10-05T13:19:14+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-06T19:52:03+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q9730",
    "registryId": "vr.tr.classical-music",
    "name": "classical music",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "INF.MED"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q9730/",
  "model": {
    "registry_id": "vr.tr.classical-music",
    "name": "classical music",
    "purpose": "Let an agent handle classical music by work, composer, period, form, performers and recordings, with catalogue numbers for precise identification.",
    "definition": "Art music in the Western tradition, especially from the medieval period to the present and centrally the common-practice era, including symphonies, chamber music such as string quartets, opera and choral works; national classical traditions exist worldwide.",
    "what_it_is_for": "Listening, performance, study and cultural heritage.",
    "affordances": [
      "perform and listen",
      "identify works by catalogue numbers",
      "study scores and history",
      "license recordings and performances"
    ],
    "distinguishing_features": [
      "Notated art music tradition",
      "Works identified by catalogue numbers",
      "Performances and recordings are separate from the work",
      "Non-Western classical traditions also exist"
    ],
    "appearance": "Concerts, scores, recordings; ensembles from soloists to orchestras.",
    "visual_identification": [
      "Work titles with catalogue numbers such as BWV or K.",
      "Forms such as string quartet or horn trio",
      "Period labels such as Baroque or Romantic"
    ],
    "physical_properties": [],
    "families_and_kinds": [
      "medieval and Renaissance",
      "Baroque, Classical and Romantic periods",
      "modern and contemporary",
      "forms: symphony, concerto, opera, chamber music",
      "national traditions such as Mloda Polska"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "music",
        "why": "art music"
      },
      {
        "relation": "is performed by",
        "target": "musician",
        "why": "performers"
      },
      {
        "relation": "is written by",
        "target": "composer",
        "why": "author"
      },
      {
        "relation": "is recorded as",
        "target": "recording",
        "why": "media"
      }
    ],
    "identifiers": [
      {
        "scheme": "catalogue number",
        "value_or_pattern": "BWV, K., Op. and others",
        "note": "identifies works"
      },
      {
        "scheme": "ISWC",
        "value_or_pattern": "T-plus digits",
        "note": "musical works"
      }
    ],
    "standards_and_regulation": [
      "Copyright for works and performances",
      "Public domain rules for older works"
    ],
    "failure_modes_and_hazards": [
      "Confusing works with similar titles",
      "Misattributing recordings",
      "Assuming all performances are public domain"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Identify composers, works, catalogue numbers and performers from reliable sources.",
        "Play recordings the user has the right to use."
      ],
      "must_not": [
        "Attribute a work or performance to the wrong composer or performer.",
        "Distribute recordings or editions in breach of performers' or publishers' rights.",
        "Present synthetic performances as recordings by real musicians.",
        "Present the Western tradition as the only form of art music."
      ],
      "requires_human": [
        "Licensing a recording or score for public performance or broadcast."
      ]
    },
    "ethics": {
      "considerations": [
        "Performers' livelihoods depend on recordings and credits being respected.",
        "Canon-building has left out women and composers from many cultures."
      ],
      "affected_parties": [
        "Composers and performers",
        "Listeners",
        "Orchestras and music schools"
      ]
    },
    "owners": {
      "steward": "Nobody owns the tradition; rights holders own particular editions and recordings.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q9730: classical music",
      "url": "https://www.wikidata.org/wiki/Q9730",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Classical music",
      "url": "https://en.wikipedia.org/wiki/Classical_music",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "work",
        "name": "Work",
        "description": "Which piece.",
        "rationale": "Catalogue numbers identify works.",
        "layers": [
          {
            "id": "identity",
            "name": "Identity",
            "description": "Title and catalogue.",
            "findings": [
              {
                "id": "identity-finding",
                "name": "Work identity",
                "description": "Title and catalogue number.",
                "questions": [
                  {
                    "text": "Which work, with which catalogue number?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Who composed it, and when?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "form",
            "name": "Form",
            "description": "Symphony, quartet.",
            "findings": [
              {
                "id": "form-finding",
                "name": "Form",
                "description": "Form and scoring.",
                "questions": [
                  {
                    "text": "What form and instrumentation?",
                    "kind": "definition"
                  },
                  {
                    "text": "How many movements?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "context",
        "name": "Context",
        "description": "Period and style.",
        "rationale": "Context explains style.",
        "layers": [
          {
            "id": "period",
            "name": "Period",
            "description": "Era.",
            "findings": [
              {
                "id": "period-finding",
                "name": "Period",
                "description": "Historical period.",
                "questions": [
                  {
                    "text": "Which period and style does it belong to?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which influences shaped it?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "reception",
            "name": "Reception",
            "description": "History.",
            "findings": [
              {
                "id": "reception-finding",
                "name": "Reception",
                "description": "Reception history.",
                "questions": [
                  {
                    "text": "How was it received?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is it widely performed?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "performance",
        "name": "Performance",
        "description": "Playing and recording.",
        "rationale": "Performances differ.",
        "layers": [
          {
            "id": "performers",
            "name": "Performers",
            "description": "Ensembles and soloists.",
            "findings": [
              {
                "id": "performers-finding",
                "name": "Performers",
                "description": "Performers.",
                "questions": [
                  {
                    "text": "Who performs this recording or concert?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which edition of the score?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "recordings",
            "name": "Recordings",
            "description": "Discography.",
            "findings": [
              {
                "id": "recordings-finding",
                "name": "Recordings",
                "description": "Recordings.",
                "questions": [
                  {
                    "text": "Which recordings exist?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Are they correctly credited?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "rights",
        "name": "Rights",
        "description": "Copyright.",
        "rationale": "Works and recordings have separate rights.",
        "layers": [
          {
            "id": "work-rights",
            "name": "Work rights",
            "description": "Composition copyright.",
            "findings": [
              {
                "id": "work-rights-finding",
                "name": "Work rights",
                "description": "Copyright in the work.",
                "questions": [
                  {
                    "text": "Is the work in the public domain?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Are modern editions protected?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "recording-rights",
            "name": "Recording rights",
            "description": "Performances.",
            "findings": [
              {
                "id": "recording-rights-finding",
                "name": "Recording rights",
                "description": "Rights in recordings.",
                "questions": [
                  {
                    "text": "Who holds rights in this recording?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How can it be licensed?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should works be instances with catalogue numbers?",
    "How should performances and recordings be linked?",
    "How should non-Western classical traditions be represented?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}