{
  "id": "bullroarer",
  "name": "Bullroarer",
  "family": "wind",
  "class": "wind_free_aerophone",
  "axes": {
    "pitchFix": -1,
    "sustain": 2,
    "polyphony": -2,
    "harmonicity": -1,
    "register": -1,
    "range": -1,
    "articulation": -1,
    "transduction": -2,
    "dynamics": 1
  },
  "short": "bullroarer",
  "parts": [
    {
      "id": "bullroarer_regional_form",
      "name": "Regional form",
      "variants": [
        {
          "id": "bullroarer_form_purerehua",
          "default": true,
          "name": "Purerehua (Maori taonga puoro)",
          "descriptors": [
            "leaf-shaped",
            "carved-wood",
            "whirring",
            "taonga-puoro"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "maori",
            "purerehua"
          ],
          "canonical_tags": [
            "maori_waiata"
          ]
        },
        {
          "id": "bullroarer_form_turndun",
          "name": "Turndun (Aboriginal Australian slat)",
          "descriptors": [
            "elongated-slat",
            "deep-roar",
            "incised",
            "sacred"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "aboriginal",
            "bullroarer"
          ],
          "canonical_tags": [
            "aboriginal_australian_songlines"
          ]
        },
        {
          "id": "bullroarer_form_rhombos",
          "name": "Rhombos (ancient ritual blade)",
          "descriptors": [
            "narrow-blade",
            "ancient-ritual",
            "droning-whir"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "ritual"
          ]
        },
        {
          "id": "bullroarer_form_concert",
          "name": "Large concert slat (modern deep-tone)",
          "descriptors": [
            "large-slat",
            "broad-blade",
            "low-roar",
            "modern"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "cinematic"
          ]
        }
      ]
    },
    {
      "id": "bullroarer_whirl_style",
      "name": "Whirl style / context",
      "variants": [
        {
          "id": "bullroarer_whirl_ceremonial",
          "default": true,
          "name": "Ceremonial slow whirl (summoning)",
          "descriptors": [
            "slow-whirl",
            "deep-swelling",
            "ritual-summoning",
            "droning"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "drone-foundation",
            "rough-tone"
          ]
        },
        {
          "id": "bullroarer_whirl_ascending",
          "name": "Accelerating whir (rising sweep)",
          "descriptors": [
            "accelerating",
            "rising-pitch",
            "quickening-whir"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "sweep"
          ]
        },
        {
          "id": "bullroarer_whirl_cinematic",
          "name": "Sustained atmospheric pulse (sound design)",
          "descriptors": [
            "sustained-pulse",
            "atmospheric",
            "low-rumble",
            "sound-design"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "drone-foundation"
          ]
        }
      ]
    },
    {
      "id": "bullroarer_slat_build",
      "surface": false,
      "name": "Slat construction",
      "variants": [
        {
          "id": "bullroarer_build_hardwood",
          "default": true,
          "name": "Carved native hardwood slat",
          "descriptors": [
            "hardwood-slat",
            "warm-roar",
            "rounded-tone"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "wood"
          ]
        },
        {
          "id": "bullroarer_build_bone",
          "name": "Bone or shell blade (brighter)",
          "descriptors": [
            "bone-blade",
            "bright-whir",
            "piercing"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "bone"
          ]
        },
        {
          "id": "bullroarer_build_serrated",
          "name": "Serrated-edge slat (rougher buzz)",
          "descriptors": [
            "serrated-edge",
            "rough-buzz",
            "gritty"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "rough-tone"
          ]
        }
      ]
    }
  ],
  "_ownParts": [
    {
      "id": "bullroarer_regional_form",
      "name": "Regional form",
      "variants": [
        {
          "id": "bullroarer_form_purerehua",
          "default": true,
          "name": "Purerehua (Maori taonga puoro)",
          "descriptors": [
            "leaf-shaped",
            "carved-wood",
            "whirring",
            "taonga-puoro"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "maori",
            "purerehua"
          ],
          "canonical_tags": [
            "maori_waiata"
          ]
        },
        {
          "id": "bullroarer_form_turndun",
          "name": "Turndun (Aboriginal Australian slat)",
          "descriptors": [
            "elongated-slat",
            "deep-roar",
            "incised",
            "sacred"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "aboriginal",
            "bullroarer"
          ],
          "canonical_tags": [
            "aboriginal_australian_songlines"
          ]
        },
        {
          "id": "bullroarer_form_rhombos",
          "name": "Rhombos (ancient ritual blade)",
          "descriptors": [
            "narrow-blade",
            "ancient-ritual",
            "droning-whir"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "ritual"
          ]
        },
        {
          "id": "bullroarer_form_concert",
          "name": "Large concert slat (modern deep-tone)",
          "descriptors": [
            "large-slat",
            "broad-blade",
            "low-roar",
            "modern"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "cinematic"
          ]
        }
      ]
    },
    {
      "id": "bullroarer_whirl_style",
      "name": "Whirl style / context",
      "variants": [
        {
          "id": "bullroarer_whirl_ceremonial",
          "default": true,
          "name": "Ceremonial slow whirl (summoning)",
          "descriptors": [
            "slow-whirl",
            "deep-swelling",
            "ritual-summoning",
            "droning"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "drone-foundation",
            "rough-tone"
          ]
        },
        {
          "id": "bullroarer_whirl_ascending",
          "name": "Accelerating whir (rising sweep)",
          "descriptors": [
            "accelerating",
            "rising-pitch",
            "quickening-whir"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "sweep"
          ]
        },
        {
          "id": "bullroarer_whirl_cinematic",
          "name": "Sustained atmospheric pulse (sound design)",
          "descriptors": [
            "sustained-pulse",
            "atmospheric",
            "low-rumble",
            "sound-design"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "drone-foundation"
          ]
        }
      ]
    },
    {
      "id": "bullroarer_slat_build",
      "surface": false,
      "name": "Slat construction",
      "variants": [
        {
          "id": "bullroarer_build_hardwood",
          "default": true,
          "name": "Carved native hardwood slat",
          "descriptors": [
            "hardwood-slat",
            "warm-roar",
            "rounded-tone"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "wood"
          ]
        },
        {
          "id": "bullroarer_build_bone",
          "name": "Bone or shell blade (brighter)",
          "descriptors": [
            "bone-blade",
            "bright-whir",
            "piercing"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "bone"
          ]
        },
        {
          "id": "bullroarer_build_serrated",
          "name": "Serrated-edge slat (rougher buzz)",
          "descriptors": [
            "serrated-edge",
            "rough-buzz",
            "gritty"
          ],
          "match_tokens": [
            "whirled",
            "wind-driven",
            "rough-tone"
          ]
        }
      ]
    }
  ]
}