{
  "nc_version": "0.1",
  "title": "C major chord, bounce 31",
  "creator": {
    "name": "Petrus",
    "link": "https://musicmatter.art/"
  },
  "license": "CC-BY-SA-4.0",
  "audio": "https://audio.musicmatter.art/sounds/cmaj-bounce-31.flac",
  "format": {
    "mime": "audio/flac",
    "container": "flac",
    "codec": "flac",
    "lossless": true,
    "sample_rate": 48000,
    "bit_depth": 24,
    "channels": 2,
    "frames": 209455,
    "pcm_md5": "564937987bf8ac09023e8bee6772df3f"
  },
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  "sha256": "4c1a0e19dc3a9a3c11188235a0d42b28c4fe6fa992eee0e5725763bafe85c4bc",
  "type": "chord",
  "key": "C major",
  "chords": [
    "Cmaj"
  ],
  "loopable": false,
  "loop": {
    "audio": "https://audio.musicmatter.art/sounds/cmaj-bounce-31.flac",
    "loop_start": 104691,
    "loop_end": 209418,
    "sample_rate": 48000,
    "length_frames": 104727,
    "length_s": 2.181812,
    "bars": 1,
    "bpm": 110,
    "region": "bar 2 (from just before strike 2 to just before strike 3)",
    "crossfade": 1165,
    "crossfade_ms": 24.271,
    "crossfade_shape": "equal-power",
    "crossfade_mode": "tail-into-pre-roll",
    "spec": "https://musicmatter.art/CHANGELOG.md (v7.2: loop entry)"
  },
  "register": {
    "low": "E3",
    "high": "C4",
    "root": "C4",
    "bass": "E3",
    "inversion": "first"
  },
  "midi": "../midi/cmaj-bounce-31.mid",
  "midi_info": {
    "derived_from_audio": true,
    "source": "audio_analysis",
    "confidence": "medium",
    "method": "polyphonic analysis of this clip (CQT peak picking + NNLS template fit, one note per chord tone)",
    "timing": "two strikes on the downbeats of bars 1 and 2 at 110 BPM 4/4 (measured onsets 0 s and 2.182 s), each held one bar; velocity 96 (strikes measured equal within ±0.4 dB)",
    "notes": [
      "E3",
      "G3",
      "C4"
    ],
    "size_bytes": 291,
    "sha256": "4ea244d37431d3df2914025f7b2b4a30e21507922b58b29c38749b05b4b3b6c2"
  },
  "register_source": "verified_v6"
}