{
  "example": "Worked Schumann piano-to-production handoff; not a customer testimonial",
  "revision": "Only whole-RH vibraphone track volume 100 \u2192 50; LH piano and all 303 note events unchanged",
  "upper_layer_scope": "Includes chords and inner notes; not melody extraction",
  "development_status": "This example was prepared in development. Separate-hand and meter-aware MIDI export is now available in production.",
  "source": {
    "title": "Schumann M\u00e9lodie, Op. 68 No. 1",
    "engraver": "Philippe H\u00e9zaine",
    "publisher_source": "Peters",
    "url": "https://www.mutopiaproject.org/cgibin/piece-info.cgi?id=647",
    "license": "https://creativecommons.org/licenses/by-sa/2.5/",
    "publisher_also_has_midi": true
  },
  "native_projects": {
    "app": "LMMS 1.2.2",
    "genuine_gui_saves": true,
    "sha256": {
      "schumann-delivered.mmp": "91da1b9a4984e7c54af049c6f1055b2ad26ff02825c23c07e2ec5da956bc505e",
      "schumann-upper-half.mmp": "e9fc62a8bc190d46c192c58c283165ec76895e4c15b59f3d9c849aa30e2c677c"
    },
    "changes_only": [
      "SoundFont references saved to supported user-samples relative paths",
      "RH instrumenttrack volume 100 \u2192 50"
    ]
  },
  "timing": {
    "tempo": 80,
    "meter": "4/4",
    "performed_notes": 303,
    "right_hand": 118,
    "left_hand": 185,
    "quarter_beats": 96,
    "written_bars": 20,
    "performed_bars": 24,
    "note_seconds": 72,
    "native_frames": 3307264,
    "sample_rate": 44100,
    "native_seconds": 74.9946485260771,
    "cue_start": 0,
    "cue_end": 6,
    "cue_label": "Opening two bars"
  },
  "render": {
    "engine": "native LMMS CLI",
    "format": "IEEE float32 stereo WAV",
    "sample_rate": 44100,
    "interpolation": "Sinc Medium",
    "oversampling": 1,
    "full_decay_tail": true,
    "normalization": "none",
    "upper_parts": "Fresh native renders of temporary LH-muted export copies; supplied GUI project bytes unchanged",
    "bass": "One shared native export, byte-identical in both sessions"
  },
  "browser_audio": {
    "format": "MP3, libmp3lame 192 kbps, stereo 44100 Hz",
    "common_gain_db": 12,
    "independent_normalization": false,
    "lossy": true,
    "decoded_frames": 3307264,
    "container_seconds": 75.023673,
    "native_wavs_unchanged": true
  },
  "setup": "Install samples/pn-schumann-handoff in the recipient LMMS working directory samples folder, then open a supplied project; if needed, relink both SoundFont players to the included file. These are user-samples paths, not project-relative paths.",
  "relocation_test": "Exact projects loaded/rendered by native LMMS 1.2.2 under a separate working directory. OS file-open trace confirmed only the bundled relocated SoundFont. No zero-setup or cross-version portability claim.",
  "numeric_checks": {
    "upper_half": {
      "exact_sample_equality": true,
      "max_absolute_error": 0.0,
      "rms_error": 0.0,
      "frames_over_1e_minus_7": 0,
      "first_affected_frame": null,
      "last_affected_frame": null
    },
    "bass_across_both_projects": {
      "exact_sample_equality": true,
      "max_absolute_error": 0.0,
      "rms_error": 0.0,
      "frames_over_1e_minus_7": 0,
      "first_affected_frame": null,
      "last_affected_frame": null
    },
    "delivered_parts_sum": {
      "exact_sample_equality": false,
      "max_absolute_error": 7.450580596923828e-09,
      "rms_error": 7.113813777015745e-10,
      "frames_over_1e_minus_7": 0,
      "first_affected_frame": null,
      "last_affected_frame": null
    },
    "revised_parts_sum": {
      "exact_sample_equality": false,
      "max_absolute_error": 3.725290298461914e-09,
      "rms_error": 4.587357247419892e-10,
      "frames_over_1e_minus_7": 0,
      "first_affected_frame": null,
      "last_affected_frame": null
    },
    "revised_mix_from_delivered_and_bass": {
      "exact_sample_equality": false,
      "max_absolute_error": 7.450580596923828e-09,
      "rms_error": 5.917042249471425e-10,
      "frames_over_1e_minus_7": 0,
      "first_affected_frame": null,
      "last_affected_frame": null
    }
  },
  "limits": [
    "No listening or artistic preference approval",
    "No claimed expressive piano-performance recreation",
    "Printed fingerings, pas vite and six espressivo signs are not reproduced in MIDI",
    "MP3 is lossy and has common playback gain; it is not identical to native WAV"
  ]
}