music/exemplars/formula_cards/UNMATCHED__48_Evolution.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__48_Evolution",
"title": null,
"game": null,
"composer": null,
"purpose_class": null,
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Compilations\\Pokémon Diamond & Pokémon Pearl_ Super M\\48 Evolution.m4a",
"sha256": "a56706594c19ce65ba344f5ba8167c5e376fe55cc1c7df352c44cae630837f60",
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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": "2026-08-07T03:19:04+00:00",
"format_induced_limit": "lossy source (aac); high-band timbre figures carry codec artefacts and the card declares it",
"control": {
"controls_passed": 24,
"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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{
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{
"section": 5,
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}
],
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"method": "checkerboard-kernel novelty over a chroma+MFCC self-similarity matrix"
},
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{
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}
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},
"global_bpm": 117.45,
"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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"mean": 7.684
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},
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"at_s": 1.95,
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"bars_held_s": 2.229,
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{
"position": 0.1757,
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{
"position": 0.8801,
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{
"position": 0.9188,
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{
"position": 0.9575,
"at_s": 29.861,
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{
"position": 0.137,
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{
"position": 0.2799,
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{
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{
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{
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],
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"note": "Section 11.2 treats rest as a FIRST-CLASS parameter, not an absence."
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"breaks": 2,
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2.23,
2.97,
3.72,
4.46,
5.2,
5.94,
6.69,
7.43,
8.17,
8.92,
9.66,
10.4,
11.15,
11.89,
12.63,
13.37,
14.12,
14.86,
15.6,
16.35,
17.09,
17.83,
18.58,
19.32,
20.06,
20.81,
21.55,
22.29,
23.03,
23.78,
24.52,
25.26,
26.01,
26.75,
27.49,
28.24,
28.98,
29.72,
30.46
],
"values": [
0.1394,
0.6588,
0.6459,
0.3727,
0.6062,
0.3703,
0.6847,
0.7049,
0.6635,
0.572,
0.6351,
0.6478,
0.7001,
0.7351,
0.7043,
0.7104,
0.7019,
0.7313,
0.7247,
0.6898,
0.674,
0.6666,
0.7032,
0.7352,
0.6859,
0.6498,
0.6954,
0.6871,
0.7621,
0.6941,
0.6965,
0.6806,
0.6938,
0.7191,
0.7394,
0.6809,
0.6095,
0.5305,
0.3125,
0.1895,
0.0973,
0.0461
],
"peak_position_normalised": 0.6664
}
},
"complexity_law": {
"available": true,
"bar_length_s": 2.0434,
"bars": 15,
"index_per_bar": [
0.8619,
0.8313,
0.9427,
0.9166,
0.9532,
0.9993,
0.9916,
1.0,
0.9925,
0.9994,
0.9838,
0.9997,
0.9829,
0.8527,
0.1577
],
"definition": "lane count + 4*harmonic change rate + 0.6*onset strength + 0.4*register span, per bar, normalised to the track's own maximum (section 11.6)",
"step_map": [
{
"bar": 14,
"at_s": 28.61,
"delta": -0.695,
"at_section_boundary": true
}
],
"steps_at_section_boundaries": 1,
"steps_total": 1,
"boundary_step_share": 1.0,
"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": {
"note_rate_per_s": 2.309,
"melodic_salience": 0.6668,
"voiced_fraction": 0.2851,
"note_count": 72,
"mean_lanes": 7.684,
"max_lanes": 9
},
"dynamics": {
"dynamic_range_db_p95_minus_p10": 22.11,
"peak_position_normalised": 0.5421,
"peak_at_s": 16.904,
"arc_curve_db": [
-37.03,
-46.39,
-19.56,
-20.13,
-20.39,
-19.84,
-16.95,
-14.76,
-17.58,
-19.09,
-18.92,
-19.3,
-15.85,
-13.46,
-15.38,
-14.96,
-14.63,
-13.21,
-13.66,
-15.53,
-15.13,
-14.73,
-14.27,
-13.02,
-14.12,
-15.17,
-14.82,
-14.92,
-13.13,
-13.71,
-15.72,
-14.92,
-14.57,
-13.63,
-13.33,
-15.67,
-17.86,
-21.39,
-27.14,
-34.32,
-49.52,
-67.09
],
"arc_times_s": [
0.0,
0.74,
1.49,
2.23,
2.97,
3.72,
4.46,
5.2,
5.94,
6.69,
7.43,
8.17,
8.92,
9.66,
10.4,
11.15,
11.89,
12.63,
13.37,
14.12,
14.86,
15.6,
16.35,
17.09,
17.83,
18.58,
19.32,
20.06,
20.81,
21.55,
22.29,
23.03,
23.78,
24.52,
25.26,
26.01,
26.75,
27.49,
28.24,
28.98,
29.72,
30.46
]
},
"register": {
"melody_span_semitones": 38.0,
"melody_tessitura_midi": 43.0,
"bass_floor_band": {
"sub": 0.00054,
"low_bass": 0.07854,
"bass": 0.1663,
"low_mid": 0.30146,
"mid": 0.28928,
"upper_mid": 0.11754,
"presence": 0.0338,
"brilliance": 0.00849,
"air": 0.00395,
"ultra": 0.0
},
"octave_band_profile": {
"sub": 0.00054,
"low_bass": 0.07854,
"bass": 0.1663,
"low_mid": 0.30146,
"mid": 0.28928,
"upper_mid": 0.11754,
"presence": 0.0338,
"brilliance": 0.00849,
"air": 0.00395,
"ultra": 0.0
}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 0.7627,
"interior_distance_median": 0.02164,
"seam_ratio": 35.252,
"seam_clean": false,
"tail_rms_over_mid": 0.0006,
"head_rms_over_mid": 0.0,
"tail_rms_trend": -0.8344,
"head_rms_trend": 0.2536,
"baked_fade_out": true,
"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."
},
"timbre": {
"spectral_centroid_hz_mean": 1720.8,
"spectral_centroid_curve_hz": [
813.8,
2546.4,
1842.7,
1453.7,
1536.8,
1339.4,
1697.2,
1961.2,
1579.5,
2068.2,
1799.5,
2171.8,
1756.9,
2196.2,
2103.8,
2213.2,
1965.8,
1892.7,
1914.3,
1690.4,
1761.1,
1477.9,
1522.4,
1915.1,
1327.0,
1323.9,
1923.4,
1569.6,
2342.4,
1484.9,
1917.3,
1753.7,
1820.2,
1691.5,
2075.2,
1685.0,
1588.9,
1674.2,
1385.3,
1823.8,
1289.5,
665.7
],
"spectral_rolloff85_hz_mean": 3520.8,
"spectral_flatness_mean": 0.02002,
"signature_colour": "warm"
}
}
}