{
  "id": "senggayung_bamboo_tubes",
  "name": "Senggayung struck bamboo tubes",
  "short": "senggayung bamboo tubes",
  "family": "percussion",
  "class": "struck_bamboo_idiophone",
  "axes": {
    "pitchFix": 0,
    "sustain": 0,
    "polyphony": 0,
    "harmonicity": 0,
    "register": 0,
    "range": 0,
    "articulation": 0,
    "transduction": 0,
    "dynamics": 0
  },
  "parts": [
    {
      "id": "senggayung_tube_construction",
      "name": "Tube construction",
      "variants": [
        {
          "id": "senggayung_tube_bamboo_node_tongue",
          "name": "Fresh bamboo tube closed at one node, with cut tongue-like wall extension",
          "default": true,
          "descriptors": [
            "bamboo"
          ],
          "match_tokens": []
        }
      ]
    },
    {
      "id": "senggayung_excitation",
      "name": "Excitation and pitch selection",
      "variants": [
        {
          "id": "senggayung_paired_striking_grip_muting",
          "name": "Two handheld tubes struck together; tighter grip damps one while the looser tube sounds",
          "default": true,
          "descriptors": [
            "struck",
            "muted"
          ],
          "match_tokens": []
        }
      ]
    },
    {
      "id": "senggayung_ensemble_layout",
      "name": "Selected Upper Jelai ensemble configuration",
      "variants": [
        {
          "id": "senggayung_upper_jelai_seven_pairs",
          "name": "Seven tuned pairs: pa’indai, pangait, anak julat and four anak jurut pairs",
          "default": true,
          "descriptors": [
            "pitched"
          ],
          "match_tokens": []
        }
      ]
    }
  ],
  "description": "Source-documented paired bamboo idiophones for Upper Jelai senggayung repertoire. Each tube has one closed node and cut-away wall/tongue; tongue proportion sets pitch. Paired striking and differential grip muting select sounding pitch. Selected Upper Jelai ensemble uses seven pairs with named register roles; not a universal claim for other regional ensembles (source also describes three-pair Randau). Source approximate pitch letters are not encoded as exact temperament. Neutral routing axes are authored, not acoustic measurements. Distinct from shaken frame-mounted angklung and suspended xylophone tubes.",
  "sources": [
    "https://folkways-media.si.edu/docs/folkways/artwork/SFW40444.pdf",
    "https://folkways.si.edu/bamboo-senggayung-ensemble/dusun-t/kalait-cambung/islamica-world/music/track/smithsonian"
  ],
  "_ownParts": [
    {
      "id": "senggayung_tube_construction",
      "name": "Tube construction",
      "variants": [
        {
          "id": "senggayung_tube_bamboo_node_tongue",
          "name": "Fresh bamboo tube closed at one node, with cut tongue-like wall extension",
          "default": true,
          "descriptors": [
            "bamboo"
          ],
          "match_tokens": []
        }
      ]
    },
    {
      "id": "senggayung_excitation",
      "name": "Excitation and pitch selection",
      "variants": [
        {
          "id": "senggayung_paired_striking_grip_muting",
          "name": "Two handheld tubes struck together; tighter grip damps one while the looser tube sounds",
          "default": true,
          "descriptors": [
            "struck",
            "muted"
          ],
          "match_tokens": []
        }
      ]
    },
    {
      "id": "senggayung_ensemble_layout",
      "name": "Selected Upper Jelai ensemble configuration",
      "variants": [
        {
          "id": "senggayung_upper_jelai_seven_pairs",
          "name": "Seven tuned pairs: pa’indai, pangait, anak julat and four anak jurut pairs",
          "default": true,
          "descriptors": [
            "pitched"
          ],
          "match_tokens": []
        }
      ]
    }
  ]
}