music/exemplars/formula_cards/UNMATCHED__08_Hurry_Along_1.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__08_Hurry_Along_1",
"title": null,
"game": null,
"composer": null,
"purpose_class": null,
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Compilations\\Pokémon Black & Pokémon White_ Super Mus\\08 Hurry Along 1.m4a",
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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": "2026-08-07T01:32:01+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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"method": "checkerboard-kernel novelty over a chroma+MFCC self-similarity matrix"
},
"tempo_and_time_grammar": {
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{
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{
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}
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0.9785,
0.9873,
0.9779,
0.9528,
0.9815,
0.9796,
1.0,
0.9441,
0.9411,
0.668,
0.1907,
0.0371
],
"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": 0.93,
"delta": 0.269,
"at_section_boundary": true
},
{
"bar": 19,
"at_s": 17.65,
"delta": -0.273,
"at_section_boundary": false
},
{
"bar": 20,
"at_s": 18.58,
"delta": -0.477,
"at_section_boundary": false
},
{
"bar": 21,
"at_s": 19.5,
"delta": -0.154,
"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": 2.143,
"melodic_salience": 0.7519,
"voiced_fraction": 0.2897,
"note_count": 45,
"mean_lanes": 5.986,
"max_lanes": 9
},
"dynamics": {
"dynamic_range_db_p95_minus_p10": 30.31,
"peak_position_normalised": 0.6438,
"peak_at_s": 13.514,
"arc_curve_db": [
-63.06,
-70.46,
-15.08,
-14.41,
-14.98,
-15.73,
-14.47,
-14.54,
-14.13,
-14.91,
-16.03,
-15.21,
-14.3,
-13.15,
-14.83,
-16.0,
-15.15,
-14.35,
-13.57,
-15.14,
-15.84,
-15.13,
-15.53,
-17.05,
-22.63,
-30.0,
-40.14,
-85.64,
-87.25
],
"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
]
},
"register": {
"melody_span_semitones": 24.0,
"melody_tessitura_midi": 45.0,
"bass_floor_band": {
"sub": 0.00375,
"low_bass": 0.24675,
"bass": 0.15818,
"low_mid": 0.22075,
"mid": 0.30875,
"upper_mid": 0.04962,
"presence": 0.00884,
"brilliance": 0.00197,
"air": 0.00038,
"ultra": 0.0
},
"octave_band_profile": {
"sub": 0.00375,
"low_bass": 0.24675,
"bass": 0.15818,
"low_mid": 0.22075,
"mid": 0.30875,
"upper_mid": 0.04962,
"presence": 0.00884,
"brilliance": 0.00197,
"air": 0.00038,
"ultra": 0.0
}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 1.0,
"interior_distance_median": 0.12245,
"seam_ratio": 8.166,
"seam_clean": false,
"tail_rms_over_mid": 0.0,
"head_rms_over_mid": 0.0,
"tail_rms_trend": -0.7831,
"head_rms_trend": 0.5906,
"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": 941.0,
"spectral_centroid_curve_hz": [
0.0,
1789.7,
707.8,
520.2,
714.3,
1133.7,
931.5,
713.4,
1490.4,
719.4,
768.0,
750.9,
1704.6,
1312.2,
505.5,
575.4,
1280.6,
1117.5,
1307.5,
582.1,
1056.6,
785.6,
833.2,
1451.9,
1234.7,
625.0,
684.8,
1412.8,
0.0
],
"spectral_rolloff85_hz_mean": 1572.5,
"spectral_flatness_mean": 0.04796,
"signature_colour": "dark"
}
}
}