{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-13T13:26:56Z",
    "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": 4,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-06T12:00:00Z",
      "ingestedAt": "2026-10-06T07:38:00+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q1080022",
    "registryId": "vr.tr.temperament-q1080022",
    "name": "temperament",
    "version": "0.2.0-wave.4",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "XCT.QLT"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q1080022/",
  "model": {
    "registry_id": "vr.tr.temperament-q1080022",
    "name": "temperament",
    "purpose": "Let an agent explain musical temperament and its kinds, relay the mathematics, history and practice of tuning systems from music theory sources, describe historical and modern usage, and distinguish temperament from just intonation, from pitch standard and from the psychological sense of temperament.",
    "definition": "A tuning system that adjusts the pure intervals of just intonation so that a fixed set of pitches can serve many keys, including meantone and other regular temperaments, well temperaments such as Werckmeister s that make all keys usable with differing colours, the organ temperaments of builders such as Gottfried Silbermann, and equal temperament that divides the octave into twelve equal semitones; five-limit tuning and regular diatonic tuning are related systems, and the choice of temperament shapes the sound of historical and modern music.",
    "what_it_is_for": "Making fixed-pitch instruments usable across keys.",
    "affordances": [
      "explain kinds",
      "relay mathematics and history",
      "describe usage",
      "distinguish related concepts"
    ],
    "distinguishing_features": [
      "Compromise of intervals",
      "Key usability",
      "Historical variety",
      "Mathematical basis"
    ],
    "appearance": "Not a visible object; a set of pitch relationships.",
    "visual_identification": [
      "Adjusted tuning of intervals",
      "Meantone, Werckmeister, well temperament, equal temperament, Silbermann organ temperaments, five-limit tuning, regular diatonic tuning",
      "Just intonation uses pure ratios; pitch standard sets A; psychological temperament is a personality trait"
    ],
    "physical_properties": [
      {
        "quantity": "equal semitone ratio",
        "typical_range": "2 to the power 1/12, about 1.0595",
        "unit": "ratio",
        "note": ""
      },
      {
        "quantity": "Pythagorean comma",
        "typical_range": "about 23.5",
        "unit": "cents",
        "note": ""
      },
      {
        "quantity": "Werckmeister temperaments",
        "typical_range": "1691",
        "unit": "year",
        "note": ""
      },
      {
        "quantity": "quarter-comma meantone fifth",
        "typical_range": "about 696.6",
        "unit": "cents",
        "note": ""
      }
    ],
    "families_and_kinds": [
      "Pythagorean tuning",
      "just intonation and five-limit tuning",
      "meantone and regular temperaments",
      "well temperaments such as Werckmeister and Kirnberger",
      "organ temperaments such as Silbermann s",
      "equal temperament",
      "regular diatonic tunings and modern microtonal systems"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "tuning system",
        "why": "in registry terms"
      },
      {
        "relation": "is contrasted with",
        "target": "just intonation",
        "why": "with pure ratios"
      },
      {
        "relation": "is exemplified by",
        "target": "equal temperament",
        "why": "the modern standard"
      },
      {
        "relation": "was developed by",
        "target": "Andreas Werckmeister",
        "why": "among others"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "ISO 16 pitch standard for A440",
      "No regulation of temperament"
    ],
    "failure_modes_and_hazards": [
      "Confusing temperament with just intonation or pitch standard",
      "Anachronistic assumptions about historical tuning",
      "Registry aliases mixing systems and a builder s practice"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Explain equal, meantone and well temperaments and their history.",
        "Compute pitches and cent deviations for a stated temperament.",
        "Tune instruments it is authorized to tune to the temperament the musician chooses."
      ],
      "must_not": [
        "Confuse musical temperament with a person's temperament in data.",
        "Present equal temperament as the only correct tuning.",
        "Retune a historical instrument without its keeper's consent."
      ],
      "requires_human": [
        "Retuning a historic organ or harpsichord."
      ]
    },
    "ethics": {
      "considerations": [
        "Historical tunings are part of musical heritage and performance practice.",
        "Non-Western tunings are often wrongly treated as out of tune."
      ],
      "affected_parties": [
        "Musicians",
        "Keepers of historic instruments",
        "Listeners"
      ]
    },
    "owners": {
      "steward": "Nobody owns a tuning system; it belongs to musical practice.",
      "master_systems": []
    }
  },
  "sources": [],
  "structure": {
    "bundles": [
      {
        "id": "understand",
        "name": "Understand",
        "description": "What temperament is.",
        "rationale": "Science.",
        "layers": [
          {
            "id": "definition",
            "name": "Definition",
            "description": "Definition.",
            "findings": [
              {
                "id": "definition-finding",
                "name": "Definition",
                "description": "Definition.",
                "questions": [
                  {
                    "text": "What is musical temperament, and how does it differ from just intonation, pitch standard and psychological temperament?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is the question about tuning theory, history, a specific system or an instrument?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "kinds",
            "name": "Kinds",
            "description": "Kinds.",
            "findings": [
              {
                "id": "kinds-finding",
                "name": "Kinds",
                "description": "Kinds.",
                "questions": [
                  {
                    "text": "What are meantone, well temperaments such as Werckmeister, Silbermann organ temperaments, equal temperament, five-limit and regular diatonic tuning?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which entry fits the specific system?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "theory",
        "name": "Theory",
        "description": "Mathematics.",
        "rationale": "Science.",
        "layers": [
          {
            "id": "commas",
            "name": "Commas",
            "description": "Commas and ratios.",
            "findings": [
              {
                "id": "commas-finding",
                "name": "Commas",
                "description": "Commas.",
                "questions": [
                  {
                    "text": "How do the Pythagorean and syntonic commas force compromises, and how are temperaments calculated in cents?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which references are standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "comparison",
            "name": "Comparison",
            "description": "Comparing systems.",
            "findings": [
              {
                "id": "comparison-finding",
                "name": "Comparison",
                "description": "Comparison.",
                "questions": [
                  {
                    "text": "How do the systems compare in purity of thirds and fifths and in key colour?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which sources are cited?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "practice",
        "name": "Practice",
        "description": "Practice.",
        "rationale": "Practice.",
        "layers": [
          {
            "id": "tuning",
            "name": "Tuning",
            "description": "Tuning instruments.",
            "findings": [
              {
                "id": "tuning-finding",
                "name": "Tuning",
                "description": "Tuning.",
                "questions": [
                  {
                    "text": "How are keyboards and organs tuned to a chosen temperament?",
                    "kind": "action"
                  },
                  {
                    "text": "Which entry fits piano tuning?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "performance",
            "name": "Performance",
            "description": "Historical performance.",
            "findings": [
              {
                "id": "performance-finding",
                "name": "Performance",
                "description": "Performance.",
                "questions": [
                  {
                    "text": "How do performers choose temperaments for Baroque and other repertoire, with debates attributed?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits historically informed performance?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "context",
        "name": "Context",
        "description": "History and beyond.",
        "rationale": "Context.",
        "layers": [
          {
            "id": "history",
            "name": "History",
            "description": "History.",
            "findings": [
              {
                "id": "history-finding",
                "name": "History",
                "description": "History.",
                "questions": [
                  {
                    "text": "How did temperament develop from Pythagoras through meantone and well temperament to equal temperament?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits the history of tuning?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "beyond",
            "name": "Beyond",
            "description": "Non-Western and microtonal.",
            "findings": [
              {
                "id": "beyond-finding",
                "name": "Beyond",
                "description": "Beyond.",
                "questions": [
                  {
                    "text": "How do non-Western and microtonal systems approach tuning?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits microtonal music?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should equal temperament, meantone and well temperament be separate primary entries?",
    "How should music theory sources be linked?",
    "The registry entry has merged aliases naming specific systems and a builder; should they be split off?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}