{
  "duration_seconds": 90.0,
  "pitch_system": {
    "encoding": "ratio",
    "reference_hz": 165,
    "pitches": [
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      1.125,
      1.2656,
      1.3333,
      1.5,
      1.6875,
      1.8984,
      2.0,
      2.25,
      2.5312,
      2.6667,
      3.0,
      3.375,
      3.7969,
      4.0
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    "octave_repeats": true
  },
  "rhythm_system": {
    "type": "additive",
    "groupings": [
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      3
    ],
    "base_unit_ms": 250
  },
  "voices": [
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      "name": "drone",
      "timbre": "soft_pad",
      "pitch_indices": [
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      ],
      "rhythm_role": "sustained_drone",
      "amplitude": 0.5,
      "spatial_position": [
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        -0.3
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    },
    {
      "name": "slow_voice",
      "timbre": "vocal_male_low",
      "pitch_indices": [
        0,
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13
      ],
      "rhythm_role": "melodic_lead",
      "amplitude": 0.75,
      "spatial_position": [
        0.0,
        0.2
      ]
    },
    {
      "name": "counter_flute",
      "timbre": "bamboo_flute",
      "pitch_indices": [
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13
      ],
      "rhythm_role": "melodic_lead",
      "amplitude": 0.65,
      "spatial_position": [
        0.3,
        0.25
      ]
    },
    {
      "name": "chA_low",
      "timbre": "vocal_male_low",
      "pitch_indices": [
        0,
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9
      ],
      "rhythm_role": "sustained_drone",
      "amplitude": 0.55,
      "spatial_position": [
        -0.6,
        0.0
      ]
    },
    {
      "name": "chA_reed",
      "timbre": "reed",
      "pitch_indices": [
        0,
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11
      ],
      "rhythm_role": "sustained_drone",
      "amplitude": 0.48,
      "spatial_position": [
        -0.5,
        0.1
      ]
    },
    {
      "name": "chB_high",
      "timbre": "vocal_female_high",
      "pitch_indices": [
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13
      ],
      "rhythm_role": "sustained_drone",
      "amplitude": 0.55,
      "spatial_position": [
        0.6,
        0.1
      ]
    },
    {
      "name": "chB_bow",
      "timbre": "bowed_string",
      "pitch_indices": [
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13
      ],
      "rhythm_role": "sustained_drone",
      "amplitude": 0.48,
      "spatial_position": [
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        0.15
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  ],
  "form": {
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    "sections": [
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        "start_seconds": 0,
        "duration_seconds": 20,
        "character": "drone + slow voice intoning home, pentatonic only",
        "chord_tones": [
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          4
        ]
      },
      {
        "name": "walk",
        "start_seconds": 20,
        "duration_seconds": 18,
        "character": "melody begins stepping, P4 added",
        "chord_tones": [
          0,
          2,
          4,
          5
        ]
      },
      {
        "name": "flights",
        "start_seconds": 38,
        "duration_seconds": 18,
        "character": "full scale, counter voice enters, rhythmic density rises",
        "chord_tones": [
          0,
          2,
          4,
          6
        ]
      },
      {
        "name": "peak",
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        "duration_seconds": 14,
        "character": "full + upper octave, maximum density",
        "chord_tones": [
          0,
          4,
          7,
          9,
          11
        ]
      },
      {
        "name": "sink",
        "start_seconds": 70,
        "duration_seconds": 20,
        "character": "scale contracts back to home alone",
        "chord_tones": [
          0
        ]
      }
    ]
  },
  "ornamentation": {
    "density": 0.2,
    "rule": "Rhythmic-only: the slow_voice may displace attacks by up to 0.3 units; note durations vary (0.3-1.5 units). No melodic ornament."
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      "amplitude": 0.5
    },
    {
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    {
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    {
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    {
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    {
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    {
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    {
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    {
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    {
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    {
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    {
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    {
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    {
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    {
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    {
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    {
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    {
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    {
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