{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T20:05:18Z",
    "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": 2,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T19:00:00Z",
      "ingestedAt": "2026-10-05T20:49:46+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "revisions": [
      {
        "at": "2026-10-06T22:56:00+00:00",
        "engine": "codex",
        "fields": [
          "definition"
        ],
        "answering_review": "06169da9c987cc0652c280ac499af85b806c99ed6ca7ec9f085f4e59860691da"
      }
    ],
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T10:10:32+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q636099",
    "registryId": "vr.tr.step",
    "name": "step",
    "version": "0.2.0-wave.2",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "XCT.QTY"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q636099/",
  "model": {
    "registry_id": "vr.tr.step",
    "name": "step",
    "purpose": "Let an agent explain steps and seconds in music theory, identify them in scales and melodies, and relate them to tuning systems and non-Western scales.",
    "definition": "In the specified musical sense, a step is the interval between two consecutive notes of a diatonic scale, forming a second that is either a whole step or major second, or a half step or minor second; steps are building blocks of diatonic scales and melodies, while uses of the term in other scales and tuning systems are contextual extensions in which adjacent degrees need not form a second.",
    "what_it_is_for": "Music theory and ear training.",
    "affordances": [
      "identify whole and half steps in scales",
      "explain second intervals and their qualities",
      "relate steps to tuning systems",
      "support ear training"
    ],
    "distinguishing_features": [
      "Interval of a second",
      "Whole or half",
      "Scale building block",
      "Tuning-dependent"
    ],
    "appearance": "Not physical; intervals in notation and sound.",
    "visual_identification": [
      "Adjacent scale degrees",
      "Whole and half steps",
      "A third spans two steps"
    ],
    "physical_properties": [],
    "families_and_kinds": [
      "major second (whole step)",
      "minor second (half step)",
      "augmented second",
      "diminished and neutral seconds",
      "microtonal steps"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "interval",
        "why": "category"
      },
      {
        "relation": "is related to",
        "target": "tonic",
        "why": "scale degrees"
      },
      {
        "relation": "is related to",
        "target": "rhythm",
        "why": "other musical element"
      },
      {
        "relation": "is related to",
        "target": "guitar",
        "why": "frets as half steps"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "No regulation; music theory conventions"
    ],
    "failure_modes_and_hazards": [
      "Confusing steps and semitones across tuning systems",
      "Misidentifying augmented seconds and minor thirds",
      "Confusing senses of step"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Explain whole steps, half steps and other seconds across tuning systems.",
        "Help musicians identify intervals and transpose music."
      ],
      "must_not": [
        "Treat the major scale of Western music as the only correct system for steps.",
        "Present microtonal steps of other traditions as out of tune.",
        "Copy protected scores beyond what copyright allows."
      ],
      "requires_human": [
        "Grading a student's musical performance based on an automated analysis."
      ]
    },
    "ethics": {
      "considerations": [
        "Musical traditions with different steps deserve respect, not correction.",
        "Musicians' work is protected by copyright."
      ],
      "affected_parties": [
        "Musicians and students",
        "Traditions using other tuning systems"
      ]
    },
    "owners": {
      "steward": "Nobody owns the interval; it is held in common by music.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q636099: step",
      "url": "https://www.wikidata.org/wiki/Q636099",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Second (music)",
      "url": "https://en.wikipedia.org/wiki/Second_%28music%29",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "identify",
        "name": "Identify",
        "description": "Steps in scales.",
        "rationale": "Pattern of steps.",
        "layers": [
          {
            "id": "scale",
            "name": "Scale",
            "description": "Step patterns.",
            "findings": [
              {
                "id": "scale-finding",
                "name": "Scale",
                "description": "Scale patterns.",
                "questions": [
                  {
                    "text": "What is the pattern of whole and half steps in this scale or mode?",
                    "kind": "definition"
                  },
                  {
                    "text": "Where do the half steps fall?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "interval",
            "name": "Interval",
            "description": "Quality of a second.",
            "findings": [
              {
                "id": "interval-finding",
                "name": "Interval",
                "description": "Quality.",
                "questions": [
                  {
                    "text": "Is this interval a major, minor, augmented or diminished second?",
                    "kind": "definition"
                  },
                  {
                    "text": "How does an augmented second differ from a minor third in spelling?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "tuning",
        "name": "Tuning",
        "description": "Steps and tuning.",
        "rationale": "Systems differ.",
        "layers": [
          {
            "id": "systems",
            "name": "Systems",
            "description": "Tuning systems.",
            "findings": [
              {
                "id": "systems-finding",
                "name": "Systems",
                "description": "Tuning.",
                "questions": [
                  {
                    "text": "How large is a whole or half step in equal temperament, just intonation and other systems?",
                    "kind": "measurement"
                  },
                  {
                    "text": "What is a neutral second?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "world",
            "name": "World",
            "description": "Non-Western scales.",
            "findings": [
              {
                "id": "world-finding",
                "name": "World",
                "description": "Non-Western scales.",
                "questions": [
                  {
                    "text": "How are steps organised in maqam, raga or other systems, as their practitioners describe them?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which terms do they use?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "practice",
        "name": "Practice",
        "description": "Hearing and playing.",
        "rationale": "Ear and instrument.",
        "layers": [
          {
            "id": "ear",
            "name": "Ear",
            "description": "Ear training.",
            "findings": [
              {
                "id": "ear-finding",
                "name": "Ear",
                "description": "Ear training.",
                "questions": [
                  {
                    "text": "How can whole and half steps be recognised by ear?",
                    "kind": "action"
                  },
                  {
                    "text": "Which reference songs help?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "instrument",
            "name": "Instrument",
            "description": "On instruments.",
            "findings": [
              {
                "id": "instrument-finding",
                "name": "Instrument",
                "description": "Instruments.",
                "questions": [
                  {
                    "text": "How are steps played on the guitar, piano or other instruments?",
                    "kind": "definition"
                  },
                  {
                    "text": "How do frets and keys map to half steps?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "senses",
        "name": "Senses",
        "description": "Disambiguation.",
        "rationale": "Step has other senses.",
        "layers": [
          {
            "id": "other",
            "name": "Other",
            "description": "Other meanings.",
            "findings": [
              {
                "id": "other-finding",
                "name": "Other",
                "description": "Other meanings.",
                "questions": [
                  {
                    "text": "Is a dance step, a stair step or a step in a process meant?",
                    "kind": "boundary"
                  },
                  {
                    "text": "Which entry fits?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "compose",
            "name": "Compose",
            "description": "Stepwise motion.",
            "findings": [
              {
                "id": "compose-finding",
                "name": "Compose",
                "description": "Composition.",
                "questions": [
                  {
                    "text": "How is stepwise motion used in melody and voice leading?",
                    "kind": "definition"
                  },
                  {
                    "text": "How does it contrast with leaps?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should each second quality be a separate entry?",
    "How should tuning references be linked?",
    "How should non-Western scales be linked?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}