music/exemplars/formula_cards/UNMATCHED__89_Canalave_City_Night_.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": "UNMATCHED__89_Canalave_City_Night_",
"title": null,
"game": null,
"composer": null,
"purpose_class": null,
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Compilations\\Pokémon Diamond & Pokémon Pearl_ Super M\\89 Canalave City (Night).m4a",
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"decoder": "ffmpeg.exe :: ffmpeg version 9.0-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers",
"measured_at": "2026-08-07T03:34:05+00:00",
"format_induced_limit": "lossy source (aac); high-band timbre figures carry codec artefacts and the card declares it",
"control": {
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"controls_total": 24,
"ran_at": "2026-08-06T20:41:42+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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{
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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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"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."
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"available": true,
"bar_length_s": 1.3932,
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0.8224,
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0.8238,
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],
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{
"bar": 20,
"at_s": 27.86,
"delta": 0.166,
"at_section_boundary": false
},
{
"bar": 62,
"at_s": 86.38,
"delta": -0.493,
"at_section_boundary": false
},
{
"bar": 63,
"at_s": 87.77,
"delta": -0.183,
"at_section_boundary": false
}
],
"steps_at_section_boundaries": 0,
"steps_total": 3,
"boundary_step_share": 0.0,
"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."
},
"texture_and_density": {
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"voiced_fraction": 0.5009,
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"mean_lanes": 7.219,
"max_lanes": 9
},
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25.26,
26.01,
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34.18,
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35.67,
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39.38,
40.12,
40.87,
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48.3,
49.04,
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53.5,
54.24,
54.98,
55.73,
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68.36,
69.1,
69.85,
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84.71,
85.45,
86.19,
86.94,
87.68,
88.42,
89.16
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},
"register": {
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"melody_tessitura_midi": 52.0,
"bass_floor_band": {
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"low_bass": 0.1688,
"bass": 0.20494,
"low_mid": 0.19927,
"mid": 0.32907,
"upper_mid": 0.06348,
"presence": 0.02175,
"brilliance": 0.00521,
"air": 0.00187,
"ultra": 0.0
},
"octave_band_profile": {
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"low_bass": 0.1688,
"bass": 0.20494,
"low_mid": 0.19927,
"mid": 0.32907,
"upper_mid": 0.06348,
"presence": 0.02175,
"brilliance": 0.00521,
"air": 0.00187,
"ultra": 0.0
}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 0.38803,
"interior_distance_median": 0.04901,
"seam_ratio": 7.917,
"seam_clean": false,
"tail_rms_over_mid": 0.0004,
"head_rms_over_mid": 0.0,
"tail_rms_trend": -0.8547,
"head_rms_trend": 0.7792,
"baked_fade_out": true,
"baked_fade_in": true
},
"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."
},
"timbre": {
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"spectral_centroid_curve_hz": [
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1158.3,
1270.6,
1085.3,
1197.0,
1090.5,
1227.3,
1668.4,
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1122.6,
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756.7,
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"signature_colour": "warm"
}
}
}