{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-14T03:08:28Z",
    "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": "2026-10-06T07:43:39+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "revisions": [
      {
        "at": "2026-10-06T22:39:31+00:00",
        "engine": "codex",
        "fields": [
          "definition"
        ],
        "answering_review": "843a0f3f5614bdaa8e30767d0f2d59e0422db5cd33e86667cfc5e8429ebb7f0d"
      }
    ],
    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T10:10:27+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q1818058",
    "registryId": "vr.tr.guitar-tuning",
    "name": "guitar tuning",
    "version": "0.2.0-wave.4",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "ACT.PRC"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q1818058/",
  "model": {
    "registry_id": "vr.tr.guitar-tuning",
    "name": "guitar tuning",
    "purpose": "Let an agent explain guitar tuning, relay standard and alternative tunings, their uses and methods from music sources, describe the named tunings, and distinguish guitar tuning from music tuning systems generally, intonation and stringing.",
    "definition": "The assignment of pitches to the open strings of a guitar, with standard tuning being E A D G B E from low to high, and many alternative tunings the registry aliases name such as drop tunings that lower one or more strings, open tunings, regular tunings with even intervals, Nashville or high-strung tuning, and bass guitar tuning; tuning changes the chord shapes, resonance and playability and is used for different styles, and the Copedent describes pedal steel setups. Tuning is done by ear or with electronic tuners, and over-tightening strings can break them or, rarely, damage the instrument.",
    "what_it_is_for": "Setting the pitches of guitar strings.",
    "affordances": [
      "explain standard and alternative tunings",
      "relay uses and methods",
      "describe named tunings",
      "distinguish related concepts"
    ],
    "distinguishing_features": [
      "String pitch assignment",
      "Standard and alternative",
      "Affects chords and tone",
      "Style-dependent"
    ],
    "appearance": "Not a physical object; the pitches of the open strings.",
    "visual_identification": [
      "Assignment of pitches to guitar strings",
      "Drop tunings, Nashville tuning, overtones tuning, regular tuning, bass guitar tuning, Copedent",
      "Music tuning systems set intervals generally; intonation is accuracy along the neck; stringing is fitting strings"
    ],
    "physical_properties": [
      {
        "quantity": "standard tuning",
        "typical_range": "E A D G B E",
        "unit": "note",
        "note": ""
      },
      {
        "quantity": "drop D",
        "typical_range": "lowers the low E to D",
        "unit": "note",
        "note": "example"
      },
      {
        "quantity": "registry parent",
        "typical_range": "musical tuning",
        "unit": "note",
        "note": ""
      }
    ],
    "families_and_kinds": [
      "standard tuning",
      "drop tunings",
      "open tunings",
      "regular tunings"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "musical tuning",
        "why": "in registry terms"
      },
      {
        "relation": "is contrasted with",
        "target": "musical temperament",
        "why": ""
      },
      {
        "relation": "is contrasted with",
        "target": "intonation",
        "why": ""
      },
      {
        "relation": "is applied to",
        "target": "guitar",
        "why": ""
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "Not applicable"
    ],
    "failure_modes_and_hazards": [
      "String breakage from over-tightening",
      "Confusing tuning and intonation",
      "Neck stress from very high tunings"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Explain standard and alternative guitar tunings and the pitches of each string.",
        "Help a player tune a guitar with a tuner or reference pitches.",
        "Distinguish tuning from intonation and setup adjustments."
      ],
      "must_not": [
        "Recommend tunings that overload a guitar's neck or strings beyond what it is built for.",
        "Tighten strings on someone's instrument without their permission.",
        "Present one tuning as the only correct one for all music or traditions.",
        "Confuse a guitar's tuning with the tuning of other stringed instruments when advising a player."
      ],
      "requires_human": [
        "Adjusting the truss rod or making permanent setup changes to a valued instrument."
      ]
    },
    "ethics": {
      "considerations": [
        "Over-tightened strings can snap and injure the player's eyes or hands.",
        "Alternative tunings belong to musical traditions that deserve credit."
      ],
      "affected_parties": [
        "Guitar players",
        "Owners of instruments",
        "Music learners"
      ]
    },
    "owners": {
      "steward": "Nobody owns a tuning; the player answers for the instrument they tune.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q1818058: guitar tuning",
      "url": "https://www.wikidata.org/wiki/Q1818058",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Guitar tunings",
      "url": "https://en.wikipedia.org/wiki/Guitar_tunings",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "understand",
        "name": "Understand",
        "description": "What guitar tuning is.",
        "rationale": "Definition.",
        "layers": [
          {
            "id": "definition",
            "name": "Definition",
            "description": "Definition.",
            "findings": [
              {
                "id": "definition-finding",
                "name": "Definition",
                "description": "Definition.",
                "questions": [
                  {
                    "text": "What is guitar tuning, and how does it differ from music tuning systems generally, intonation and stringing?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is someone changing to a high tuning, where over-tightening can break strings?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "tunings",
            "name": "Tunings",
            "description": "Named tunings.",
            "findings": [
              {
                "id": "tunings-finding",
                "name": "Tunings",
                "description": "Tunings.",
                "questions": [
                  {
                    "text": "What are drop, open, regular and Nashville tunings and the Copedent?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which entry fits the specific tuning?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "standard",
        "name": "Standard",
        "description": "Standard tuning.",
        "rationale": "Sources.",
        "layers": [
          {
            "id": "eadgbe",
            "name": "EADGBE",
            "description": "Standard tuning.",
            "findings": [
              {
                "id": "eadgbe-finding",
                "name": "EADGBE",
                "description": "EADGBE.",
                "questions": [
                  {
                    "text": "Why is E A D G B E the standard tuning?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which references are standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "methods",
            "name": "Methods",
            "description": "Tuning methods.",
            "findings": [
              {
                "id": "methods-finding",
                "name": "Methods",
                "description": "Methods.",
                "questions": [
                  {
                    "text": "How is a guitar tuned by ear or with tuners?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which sources are cited?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "alternatives",
        "name": "Alternatives",
        "description": "Alternative tunings.",
        "rationale": "Sources.",
        "layers": [
          {
            "id": "drop",
            "name": "Drop",
            "description": "Drop tunings.",
            "findings": [
              {
                "id": "drop-finding",
                "name": "Drop",
                "description": "Drop.",
                "questions": [
                  {
                    "text": "How do drop tunings change chord shapes and sound?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits drop D tuning?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "open",
            "name": "Open",
            "description": "Open tunings.",
            "findings": [
              {
                "id": "open-finding",
                "name": "Open",
                "description": "Open.",
                "questions": [
                  {
                    "text": "How are open tunings used, such as in slide guitar?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is the information accurate?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "context",
        "name": "Context",
        "description": "Uses.",
        "rationale": "Sources.",
        "layers": [
          {
            "id": "styles",
            "name": "Styles",
            "description": "Style and genre.",
            "findings": [
              {
                "id": "styles-finding",
                "name": "Styles",
                "description": "Styles.",
                "questions": [
                  {
                    "text": "How do genres use particular tunings?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits slide guitar?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "bass",
            "name": "Bass",
            "description": "Bass tuning.",
            "findings": [
              {
                "id": "bass-finding",
                "name": "Bass",
                "description": "Bass.",
                "questions": [
                  {
                    "text": "How is a bass guitar tuned?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is the information current?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should open and drop tunings be separate entries?",
    "How should the Copedent for pedal steel be documented?",
    "How should tuning by style be linked?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}