{
  "title": "Lago — original ambient musical pad",
  "createdOn": "2026-09-30",
  "generator": "tools/generate-lake-music.mjs",
  "generatorVersion": 1,
  "file": "lake-music.wav",
  "seed": 2026093004,
  "provenance": "Original deterministic additive synthesis and original slow harmonic arrangement created for this museum prototype. No recordings, external samples, licensed tracks, network downloads, voices, or percussion are used.",
  "description": "Warm, quiet sustained pad: four slowly overlapping suspended/extended harmonies, low pedal and soft circular reflections. This is contemporary background music, with no historical or cultural reconstruction claim.",
  "frequencyDesign": "Main tones approximately 98–330 Hz, a quiet 73 Hz pedal, and progressively reduced second/third harmonics below 990 Hz. No high-frequency noise or sharp attacks.",
  "loopMethod": "All oscillator carriers and slow modulation use integer cycles in the buffer. Chord envelopes overlap around the circle and delayed reflections wrap within the same buffer, preserving a continuous musical bed at the boundary.",
  "frames": 617400,
  "durationSeconds": 28,
  "channels": 1,
  "sampleRateHz": 22050,
  "bitsPerSample": 16,
  "peak": 0.33999634,
  "rms": 0.08474783,
  "peakDbfs": -9.37051521,
  "rmsDbfs": -21.43742824,
  "dcOffset": 0,
  "loopBoundaryStep": 0.00424194,
  "rmsAdjacentStep": 0.00434973,
  "maxAdjacentStep": 0.02017212,
  "minimum100msRms": 0.0556019,
  "bytes": 1234844,
  "sha256": "34923c2aa8b13aa7a03c4d9394a74f565d3a7248a78e1aaa9399bb2523359de7",
  "suggestedMix": {
    "spatial": false,
    "trackGain": 0.5,
    "assumedMasterGain": 0.55,
    "narrationDuck": 0.18,
    "estimatedOutputRms": 0.023305653250000002,
    "estimatedOutputRmsDbfs": -32.650774388509724,
    "estimatedNarrationDuckedRms": 0.004195017585,
    "rationale": "A non-positional musical bed remains audible from the museum entry. Apply the visit pause, hidden-tab, mute and scene-transition gates; reduce it during narration. These are proposed mix values, not a listening certification."
  },
  "validation": "PCM format, amplitude, loop continuity, non-silent windows and byte-identical regeneration are checked automatically. No human or real-device listening test is claimed."
}