music/exemplars/formula_cards/UNMATCHED__15_Hurry_Along.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__15_Hurry_Along",
"title": null,
"game": null,
"composer": null,
"purpose_class": null,
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Compilations\\Pokémon Diamond & Pokémon Pearl_ Super M\\15 Hurry Along.m4a",
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"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": "2026-08-07T03:09:57+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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"method": "checkerboard-kernel novelty over a chroma+MFCC self-similarity matrix"
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{
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{
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0.9752,
0.9917,
0.9994,
0.9761,
0.993,
0.9919,
0.9356,
0.9377,
0.9998,
1.0,
0.9937,
0.9936,
0.9766,
0.9936,
0.9854,
0.9559,
0.917,
0.9876,
0.9435,
0.7481,
0.1881,
0.0257
],
"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": 1,
"at_s": 1.02,
"delta": 0.198,
"at_section_boundary": true
},
{
"bar": 24,
"at_s": 24.52,
"delta": -0.195,
"at_section_boundary": false
},
{
"bar": 25,
"at_s": 25.54,
"delta": -0.56,
"at_section_boundary": false
},
{
"bar": 26,
"at_s": 26.56,
"delta": -0.162,
"at_section_boundary": false
}
],
"steps_at_section_boundaries": 1,
"steps_total": 4,
"boundary_step_share": 0.25,
"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": 1.457,
"melodic_salience": 0.6152,
"voiced_fraction": 0.1634,
"note_count": 41,
"mean_lanes": 7.452,
"max_lanes": 9
},
"dynamics": {
"dynamic_range_db_p95_minus_p10": 22.53,
"peak_position_normalised": 0.6309,
"peak_at_s": 17.74,
"arc_curve_db": [
-37.44,
-46.03,
-16.9,
-17.62,
-16.77,
-14.33,
-14.45,
-14.82,
-14.86,
-14.66,
-14.63,
-14.5,
-14.81,
-14.59,
-14.45,
-15.52,
-16.05,
-16.24,
-16.87,
-16.01,
-13.84,
-13.62,
-14.0,
-13.31,
-12.98,
-13.62,
-13.9,
-13.33,
-13.97,
-15.45,
-15.18,
-15.62,
-18.17,
-22.02,
-28.23,
-37.49,
-53.16,
-60.17
],
"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
]
},
"register": {
"melody_span_semitones": 21.0,
"melody_tessitura_midi": 38.33,
"bass_floor_band": {
"sub": 0.00672,
"low_bass": 0.28721,
"bass": 0.15644,
"low_mid": 0.26729,
"mid": 0.1952,
"upper_mid": 0.05171,
"presence": 0.01738,
"brilliance": 0.01224,
"air": 0.00507,
"ultra": 0.0
},
"octave_band_profile": {
"sub": 0.00672,
"low_bass": 0.28721,
"bass": 0.15644,
"low_mid": 0.26729,
"mid": 0.1952,
"upper_mid": 0.05171,
"presence": 0.01738,
"brilliance": 0.01224,
"air": 0.00507,
"ultra": 0.0
}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 0.41342,
"interior_distance_median": 0.04178,
"seam_ratio": 9.894,
"seam_clean": false,
"tail_rms_over_mid": 0.0023,
"head_rms_over_mid": 0.0,
"tail_rms_trend": -0.6532,
"head_rms_trend": 0.5247,
"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": {
"spectral_centroid_hz_mean": 1851.7,
"spectral_centroid_curve_hz": [
981.0,
2067.3,
2531.7,
1642.7,
2539.6,
2120.5,
1958.2,
1178.7,
2084.9,
1636.3,
2202.7,
1264.3,
2485.8,
1625.3,
2538.9,
1616.1,
2260.2,
1890.4,
2068.0,
2292.5,
2176.1,
2155.5,
2318.0,
1699.2,
1369.6,
1783.4,
1411.0,
1421.4,
1729.3,
1753.5,
1197.0,
1733.5,
1813.4,
1637.4,
1422.9,
1595.7,
1500.3,
488.5
],
"spectral_rolloff85_hz_mean": 4331.3,
"spectral_flatness_mean": 0.01853,
"signature_colour": "warm"
}
}
}