{
  "id": "boba",
  "name": "Boba (Ewe Gahu master drum)",
  "family": "percussion",
  "class": "membranophone",
  "axes": {
    "pitchFix": 0,
    "sustain": -1,
    "polyphony": -2,
    "harmonicity": -1,
    "register": -2,
    "range": -1,
    "articulation": 1,
    "transduction": -2,
    "dynamics": 2
  },
  "short": "boba",
  "parts": [
    {
      "id": "boba_drum_form",
      "name": "Size / form",
      "variants": [
        {
          "id": "boba_drum_form_gahu_large",
          "default": true,
          "name": "Large Gahu boba leaned on a stand (deep bass master voice)",
          "descriptors": [
            "deep-bass",
            "booming",
            "commanding"
          ],
          "match_tokens": [
            "percussive-attack",
            "sticks",
            "low-register"
          ],
          "canonical_tags": [
            "dance",
            "lead"
          ]
        },
        {
          "id": "boba_drum_form_adzrowo_small",
          "name": "Smaller Adzrowo boba (higher, quieter, more blended)",
          "descriptors": [
            "blended",
            "quiet",
            "mid-register"
          ],
          "match_tokens": [
            "percussive-attack",
            "hands",
            "hand-struck"
          ],
          "canonical_tags": [
            "dance"
          ]
        }
      ]
    },
    {
      "id": "boba_ensemble_role",
      "name": "Ensemble role",
      "variants": [
        {
          "id": "boba_ensemble_role_gahu_lead",
          "default": true,
          "name": "Gahu master drum — sectional cues, breaks and endings",
          "descriptors": [
            "lead",
            "call-and-response",
            "commanding"
          ],
          "match_tokens": [
            "percussive-attack",
            "lead-drum",
            "call-response"
          ],
          "canonical_tags": [
            "lead",
            "dance"
          ]
        },
        {
          "id": "boba_ensemble_role_dance_cueing",
          "name": "Steering dancers and singers through the piece",
          "descriptors": [
            "dance-driving",
            "antiphonal",
            "festive"
          ],
          "match_tokens": [
            "percussive-attack",
            "lead-drum",
            "dance-driving"
          ],
          "canonical_tags": [
            "dance"
          ]
        },
        {
          "id": "boba_ensemble_role_bass_ostinato",
          "name": "Supporting bass ostinato under another lead drum",
          "descriptors": [
            "foundational",
            "grounding",
            "supporting-pulse"
          ],
          "match_tokens": [
            "percussive-attack",
            "ostinato",
            "low-register"
          ],
          "canonical_tags": [
            "ostinato"
          ]
        }
      ]
    },
    {
      "id": "boba_stroke_technique",
      "name": "Stroke technique",
      "variants": [
        {
          "id": "boba_stroke_technique_sticks",
          "default": true,
          "name": "Two sticks (Gahu)",
          "descriptors": [
            "sharp-attack",
            "projecting",
            "punchy"
          ],
          "match_tokens": [
            "percussive-attack",
            "sticks",
            "loud-projection"
          ],
          "canonical_tags": [
            "west-african"
          ]
        },
        {
          "id": "boba_stroke_technique_bare_hands",
          "name": "Bare hands (Adzrowo)",
          "descriptors": [
            "warm-open-tone",
            "soft",
            "blended"
          ],
          "match_tokens": [
            "percussive-attack",
            "hands",
            "hand-struck"
          ],
          "canonical_tags": [
            "west-african"
          ]
        }
      ]
    },
    {
      "id": "boba_hide_material",
      "name": "Shell and hide",
      "variants": [
        {
          "id": "boba_hide_material_antelope_carved",
          "default": true,
          "name": "Antelope hide on a single carved log",
          "descriptors": [
            "hide",
            "hollowed-trunk",
            "deep-voiced"
          ],
          "match_tokens": [
            "percussive-attack",
            "membrane",
            "low-register"
          ]
        },
        {
          "id": "boba_hide_material_stave_barrel",
          "name": "Stave-and-hoop cooper's barrel shell",
          "descriptors": [
            "woody",
            "resonant",
            "durable"
          ],
          "match_tokens": [
            "percussive-attack",
            "membrane",
            "low-register"
          ]
        },
        {
          "id": "boba_hide_material_goat",
          "name": "Goat hide (brighter, drier)",
          "descriptors": [
            "goat-skin-head",
            "brighter-crack",
            "dry"
          ],
          "match_tokens": [
            "percussive-attack",
            "membrane"
          ],
          "canonical_tags": [
            "goatskin"
          ]
        }
      ]
    }
  ],
  "_ownParts": [
    {
      "id": "boba_drum_form",
      "name": "Size / form",
      "variants": [
        {
          "id": "boba_drum_form_gahu_large",
          "default": true,
          "name": "Large Gahu boba leaned on a stand (deep bass master voice)",
          "descriptors": [
            "deep-bass",
            "booming",
            "commanding"
          ],
          "match_tokens": [
            "percussive-attack",
            "sticks",
            "low-register"
          ],
          "canonical_tags": [
            "dance",
            "lead"
          ]
        },
        {
          "id": "boba_drum_form_adzrowo_small",
          "name": "Smaller Adzrowo boba (higher, quieter, more blended)",
          "descriptors": [
            "blended",
            "quiet",
            "mid-register"
          ],
          "match_tokens": [
            "percussive-attack",
            "hands",
            "hand-struck"
          ],
          "canonical_tags": [
            "dance"
          ]
        }
      ]
    },
    {
      "id": "boba_ensemble_role",
      "name": "Ensemble role",
      "variants": [
        {
          "id": "boba_ensemble_role_gahu_lead",
          "default": true,
          "name": "Gahu master drum — sectional cues, breaks and endings",
          "descriptors": [
            "lead",
            "call-and-response",
            "commanding"
          ],
          "match_tokens": [
            "percussive-attack",
            "lead-drum",
            "call-response"
          ],
          "canonical_tags": [
            "lead",
            "dance"
          ]
        },
        {
          "id": "boba_ensemble_role_dance_cueing",
          "name": "Steering dancers and singers through the piece",
          "descriptors": [
            "dance-driving",
            "antiphonal",
            "festive"
          ],
          "match_tokens": [
            "percussive-attack",
            "lead-drum",
            "dance-driving"
          ],
          "canonical_tags": [
            "dance"
          ]
        },
        {
          "id": "boba_ensemble_role_bass_ostinato",
          "name": "Supporting bass ostinato under another lead drum",
          "descriptors": [
            "foundational",
            "grounding",
            "supporting-pulse"
          ],
          "match_tokens": [
            "percussive-attack",
            "ostinato",
            "low-register"
          ],
          "canonical_tags": [
            "ostinato"
          ]
        }
      ]
    },
    {
      "id": "boba_stroke_technique",
      "name": "Stroke technique",
      "variants": [
        {
          "id": "boba_stroke_technique_sticks",
          "default": true,
          "name": "Two sticks (Gahu)",
          "descriptors": [
            "sharp-attack",
            "projecting",
            "punchy"
          ],
          "match_tokens": [
            "percussive-attack",
            "sticks",
            "loud-projection"
          ],
          "canonical_tags": [
            "west-african"
          ]
        },
        {
          "id": "boba_stroke_technique_bare_hands",
          "name": "Bare hands (Adzrowo)",
          "descriptors": [
            "warm-open-tone",
            "soft",
            "blended"
          ],
          "match_tokens": [
            "percussive-attack",
            "hands",
            "hand-struck"
          ],
          "canonical_tags": [
            "west-african"
          ]
        }
      ]
    },
    {
      "id": "boba_hide_material",
      "name": "Shell and hide",
      "variants": [
        {
          "id": "boba_hide_material_antelope_carved",
          "default": true,
          "name": "Antelope hide on a single carved log",
          "descriptors": [
            "hide",
            "hollowed-trunk",
            "deep-voiced"
          ],
          "match_tokens": [
            "percussive-attack",
            "membrane",
            "low-register"
          ]
        },
        {
          "id": "boba_hide_material_stave_barrel",
          "name": "Stave-and-hoop cooper's barrel shell",
          "descriptors": [
            "woody",
            "resonant",
            "durable"
          ],
          "match_tokens": [
            "percussive-attack",
            "membrane",
            "low-register"
          ]
        },
        {
          "id": "boba_hide_material_goat",
          "name": "Goat hide (brighter, drier)",
          "descriptors": [
            "goat-skin-head",
            "brighter-crack",
            "dry"
          ],
          "match_tokens": [
            "percussive-attack",
            "membrane"
          ],
          "canonical_tags": [
            "goatskin"
          ]
        }
      ]
    }
  ]
}