music/exemplars/formula_cards/EX_110.json
{
"schema": "formula-card/v1",
"consumer": "docs/proposals/music/MASTERPIECE_PROGRAM.md rung 2 (the archetype synthesis -> MASTERPIECE_STANDARD.md)",
"tier": "RUNG-1 MEASURED",
"legal_posture": "ANALYSIS FOR UNDERSTANDING ONLY. Audio lawfully obtained by Josh, read from disk, measured, and never copied, redistributed, or used as model input of any kind.",
"track_id": "EX_110",
"title": "Want You Gone",
"game": "Portal 2",
"composer": "Jonathan Coulton",
"purpose_class": "CREDITS_TRIUMPH",
"source_path": "D:\\audio\\exemplars\\Portal2-OST\\Portal2-13-Want_You_Gone.mp3",
"sha256": "f06675cda58c93a21f75e1a5e41ebc7b7494b8d8c3c343044be07d00cdea5a04",
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"source_channels": 2,
"lossless_source": false,
"analysis_sample_rate_hz": 22050,
"decoder": "ffmpeg.exe :: ffmpeg version 9.0-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers",
"measured_at": "2026-08-06T10:50:17+00:00",
"format_induced_limit": "lossy source (mp3); high-band timbre figures carry codec artefacts and the card declares it",
"control": {
"controls_passed": 24,
"controls_total": 24,
"ran_at": "2026-08-06T10:11:06+00:00",
"ffmpeg_version": "ffmpeg version 9.0-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers",
"note": "This measurement is admissible only because the positive control recovered its planted answers in the same process, immediately before it."
},
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{
"position_s": 6.18,
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"shape": "step"
},
{
"position_s": 13.47,
"duration_s": 10.59,
"delta_bpm": -77.1,
"shape": "step"
},
{
"position_s": 55.43,
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},
{
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},
{
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"shape": "step"
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{
"position_s": 139.46,
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}
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},
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"octave_ambiguity_note": "Beat trackers pick a metrical level, and half/double-time readings are a real and known property, not an error -- the rig's own control plants 120 bpm and this estimator returns 60. Every bar figure on this card (time-to-hook in bars, the complexity index's bar length) inherits whichever level was picked, so compare bar counts within a card, never across cards, until rung 2 pins the metrical level per class.",
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"tempo_bpm_median_local": 99.38,
"tempo_iqr_bpm": 29.82,
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},
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"note": "Bar arithmetic on this card uses 4 beats per bar at the baseline tempo. The onset period beside it is MEASURED; the signature is not."
},
"groove": {
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}
},
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"modulation_note": "Windowed key agreement below ~0.7 is the modulation signal at rung 1; a pivot-chord map needs symbolic transcription (rung 2)."
},
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"pitch_contour": "UDDUDD-UUUDUDUD",
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],
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}
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"method_note": "Section 11.1 requires the lane method be declared. Bands are not instruments: two instruments in one octave read as one lane, and one instrument spanning two octaves reads as two. Entry/exit and simultaneity shapes are trustworthy; a roster is not claimed.",
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"threshold": "40 dB below the track's own p95 RMS",
"note": "Section 11.2 treats rest as a FIRST-CLASS parameter, not an absence."
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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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"hypothesis_note": "Section 11.6 expects masterpieces to step complexity AT structural boundaries and hold it flat inside sections. This share is the measurement of that claim on this track; the corpus decides, not us."
},
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118.14,
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121.86,
122.6,
123.34,
124.09,
124.83,
125.57,
126.32,
127.06,
127.8,
128.55,
129.29,
130.03,
130.77,
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132.26,
133.0,
133.75,
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135.23,
135.98,
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137.46,
138.21,
138.95,
139.69,
140.43,
141.18
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},
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},
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"loop_seam": {
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"interior_distance_median": 0.06837,
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"head_rms_over_mid": 0.5368,
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"baked_fade_in": false
},
"ending": "baked_fade_out",
"cadence_census_note": "A cadence census needs harmonic transcription and is a rung-2 dimension; the seam measurement is what rung 1 can honestly report about how it ends."
},
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827.1,
1018.9,
5580.2,
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915.5,
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4076.2,
2539.3,
1081.7,
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1847.8,
1292.0,
2692.8,
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1865.1,
1882.6,
1840.0,
1755.8,
3726.2,
2149.1,
2146.1,
2308.4,
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1693.4,
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2693.5,
2302.5,
2874.2,
2774.2,
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3463.5,
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}
}