music/exemplars/formula_cards/UNMATCHED__56_-_Ida_Race_Start.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__56_-_Ida_Race_Start",
"title": null,
"game": null,
"composer": null,
"purpose_class": null,
"source_path": "D:\\audio\\exemplars\\Okami Original Soundtrack Vol. 1\\Okami Original Soundtrack Vol. 1 [MP3]\\56 - Ida Race Start.mp3",
"sha256": "7119f1c234006af504a3e9cbcfb0f36b47be8e1862db11abfacfe27f2936cb1e",
"bytes": 394858,
"source_format": "mp3",
"source_codec": "mp3",
"source_sample_rate_hz": 44100,
"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": "2026-08-06T22:36:52+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": "2026-08-06T20:41:42+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."
},
"card": {
"duration_and_structure": {
"total_length_s": 4.907,
"section_boundaries_s": [
0.0,
0.418,
4.907
],
"section_count": 2,
"repeat_map": [
{
"section": 0,
"most_like_section": null,
"similarity": 0.0,
"is_repeat": false
},
{
"section": 1,
"most_like_section": 0,
"similarity": 0.9304,
"is_repeat": true
}
],
"novelty_peak_strength": [
1.0
],
"method": "checkerboard-kernel novelty over a chroma+MFCC self-similarity matrix"
},
"tempo_and_time_grammar": {
"tempo_function": {
"baseline_bpm": 61.52,
"curve_times_s": [
0.0,
0.37,
0.74,
1.11,
1.49,
1.86,
2.23,
2.6,
2.97,
3.34,
3.72,
4.09,
4.46,
4.83
],
"curve_bpm": [
61.52,
61.52,
61.52,
61.52,
61.52,
61.52,
61.52,
61.52,
61.52,
61.52,
61.52,
215.33,
198.77,
198.77
],
"adjustment_events": [
{
"position_s": 2.97,
"duration_s": 1.93,
"delta_bpm": 45.31,
"shape": "ramp"
}
],
"dispersion_bpm": 55.928,
"rubato_depth_bpm": 137.245
},
"global_bpm": 129.2,
"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.",
"windowed_tempo_stability": {
"tempo_bpm_global": 129.2,
"tempo_bpm_median_local": 61.52,
"tempo_iqr_bpm": 55.93,
"tempo_stability": 0.0,
"beat_interval_cv": 0.0476
},
"dominant_onset_period_s": 0.9752,
"dominant_onset_period_bpm": 61.52,
"metre": {
"assumed": "4/4",
"measured": null,
"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": {
"swing_ratio": 0.368,
"onset_rate_per_s": 10.767
}
},
"tonality": {
"key": "D",
"mode": "major",
"windowed_key_agreement": 1.0,
"modulation_note": "Windowed key agreement below ~0.7 is the modulation signal at rung 1; a pivot-chord map needs symbolic transcription (rung 2)."
},
"the_hook": {
"available": false,
"reason": "only 1 melodic notes extracted"
},
"motif_economy": {
"self_similarity_peak": 0.8919,
"self_similarity_baseline": 0.8779,
"self_similarity_lift": 0.0141,
"recurrence_lag_s": 0.464,
"interval_3gram_repetition": 0.0,
"interval_4gram_repetition": 0.0
},
"lane_analysis": {
"method": "spectral_band_proxy",
"confidence": "LOW-FOR-ROSTER, USABLE-FOR-ARRANGEMENT",
"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.",
"lane_roster_bands": [
"sub",
"low_bass",
"bass",
"low_mid",
"mid",
"upper_mid",
"presence",
"brilliance",
"air",
"ultra"
],
"entry_exit_map": [
{
"lane": "sub",
"band_hz": [
20,
45
],
"entry_s": 1.347,
"exit_s": 1.904,
"active_fraction": 0.1981,
"segments": [
[
1.347,
1.904
]
]
},
{
"lane": "low_bass",
"band_hz": [
45,
90
],
"entry_s": 0.395,
"exit_s": 1.579,
"active_fraction": 0.2453,
"segments": [
[
0.395,
1.579
]
]
},
{
"lane": "bass",
"band_hz": [
90,
180
],
"entry_s": 0.395,
"exit_s": 2.276,
"active_fraction": 0.3868,
"segments": [
[
0.395,
2.276
]
]
},
{
"lane": "low_mid",
"band_hz": [
180,
355
],
"entry_s": 1.347,
"exit_s": 2.879,
"active_fraction": 0.3443,
"segments": [
[
1.347,
2.879
]
]
},
{
"lane": "mid",
"band_hz": [
355,
710
],
"entry_s": 0.395,
"exit_s": 2.74,
"active_fraction": 0.4811,
"segments": [
[
0.395,
2.74
]
]
},
{
"lane": "upper_mid",
"band_hz": [
710,
1400
],
"entry_s": 0.395,
"exit_s": 2.995,
"active_fraction": 0.533,
"segments": [
[
0.395,
2.995
]
]
},
{
"lane": "presence",
"band_hz": [
1400,
2800
],
"entry_s": 0.395,
"exit_s": 2.183,
"active_fraction": 0.3679,
"segments": [
[
0.395,
2.183
]
]
},
{
"lane": "brilliance",
"band_hz": [
2800,
5600
],
"entry_s": 0.395,
"exit_s": 2.136,
"active_fraction": 0.3585,
"segments": [
[
0.395,
2.136
]
]
},
{
"lane": "air",
"band_hz": [
5600,
11200
],
"entry_s": 0.395,
"exit_s": 1.672,
"active_fraction": 0.2642,
"segments": [
[
0.395,
1.672
]
]
}
],
"interlap_matrix": {
"sub|low_bass": 0.4242,
"sub|bass": 0.5122,
"sub|low_mid": 0.369,
"sub|mid": 0.4118,
"sub|upper_mid": 0.3717,
"sub|presence": 0.5385,
"sub|brilliance": 0.5526,
"sub|air": 0.4848,
"low_bass|bass": 0.6341,
"low_bass|low_mid": 0.1574,
"low_bass|mid": 0.5098,
"low_bass|upper_mid": 0.4602,
"low_bass|presence": 0.6667,
"low_bass|brilliance": 0.6842,
"low_bass|air": 0.9286,
"bass|low_mid": 0.4352,
"bass|mid": 0.8039,
"bass|upper_mid": 0.7257,
"bass|presence": 0.9512,
"bass|brilliance": 0.9268,
"bass|air": 0.6829,
"low_mid|mid": 0.6204,
"low_mid|upper_mid": 0.646,
"low_mid|presence": 0.3981,
"low_mid|brilliance": 0.3796,
"low_mid|air": 0.1944,
"mid|upper_mid": 0.9027,
"mid|presence": 0.7647,
"mid|brilliance": 0.7451,
"mid|air": 0.549,
"upper_mid|presence": 0.6903,
"upper_mid|brilliance": 0.6726,
"upper_mid|air": 0.4956,
"presence|brilliance": 0.9744,
"presence|air": 0.7179,
"brilliance|air": 0.7368
},
"simultaneity_curve": {
"times_s": [
0.0,
0.186,
0.372,
0.557,
0.743,
0.929,
1.115,
1.3,
1.486,
1.672,
1.858,
2.043,
2.229,
2.415,
2.601,
2.786,
2.972,
3.158,
3.344,
3.529,
3.715,
3.901,
4.087,
4.272,
4.458,
4.644,
4.83
],
"lanes": [
0,
0,
0,
9,
8,
7,
7,
7,
9,
8,
7,
6,
4,
3,
3,
2,
1,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
],
"max": 9,
"mean": 3.179
},
"register_spacing_octaves": [
1.085,
1.0,
0.99,
0.99,
0.99,
0.99,
1.0,
1.0
]
},
"event_grammar": {
"drops": [
{
"position": 0.3691,
"at_s": 1.811,
"db_delta": -6.35,
"lanes_removed": 2.76,
"bars_held_s": 2.508,
"re_enters_at_s": 4.319
},
{
"position": 0.6152,
"at_s": 3.019,
"db_delta": -9.17,
"lanes_removed": 2.26,
"bars_held_s": 1.3,
"re_enters_at_s": 4.319
},
{
"position": 0.8613,
"at_s": 4.226,
"db_delta": -14.6,
"lanes_removed": -0.0,
"bars_held_s": 0.093,
"re_enters_at_s": 4.319
}
],
"raises": [
{
"position": 0.123,
"start_s": 0.604,
"end_s": 0.673,
"db_delta": 85.27,
"lanes_added": 4.5,
"slope_db_per_s": 1224.095
}
],
"breaks": [
{
"position": 0.0,
"at_s": 0.0,
"duration_s": 0.348
},
{
"position": 0.8329,
"at_s": 4.087,
"duration_s": 0.813
}
],
"tuttis": [],
"silence_budget": {
"fraction": 0.2453,
"seconds": 1.204,
"threshold": "40 dB below the track's own p95 RMS",
"note": "Section 11.2 treats rest as a FIRST-CLASS parameter, not an absence."
},
"counts": {
"drops": 3,
"raises": 1,
"breaks": 2,
"tuttis": 0
}
},
"opening_and_flow_law": {
"onset_type": "fade_in",
"first_sound_at_s": 0.372,
"time_to_hook_s": null,
"time_to_hook_bars": null,
"time_to_full_texture_s": 0.511,
"time_to_full_texture_bars": 0.13,
"flow_curve": {
"definition": "energy = 0.45*density + 0.35*lane-simultaneity + 0.20*register, each normalised to the track's own maximum (section 11.4)",
"times_s": [
0.0,
0.74,
1.49,
2.23,
2.97,
3.72,
4.46
],
"values": [
0.0898,
0.5813,
0.6167,
0.3365,
0.1277,
0.0619,
0.0551
],
"peak_position_normalised": 0.2749
}
},
"complexity_law": {
"available": false,
"reason": "track is under two bars at 61.5 bpm"
},
"texture_and_density": {
"note_rate_per_s": 0.204,
"melodic_salience": 0.0,
"voiced_fraction": 0.0284,
"note_count": 1,
"mean_lanes": 3.179,
"max_lanes": 9
},
"dynamics": {
"dynamic_range_db_p95_minus_p10": 63.63,
"peak_position_normalised": 0.2322,
"peak_at_s": 1.138,
"arc_curve_db": [
-50.42,
-62.7,
-24.71,
-29.52,
-40.17,
-51.94,
-52.16
],
"arc_times_s": [
0.0,
0.74,
1.49,
2.23,
2.97,
3.72,
4.46
]
},
"register": {
"melody_span_semitones": 0.0,
"melody_tessitura_midi": 83.0,
"bass_floor_band": {
"sub": 1e-05,
"low_bass": 0.00013,
"bass": 0.00033,
"low_mid": 0.07534,
"mid": 0.02635,
"upper_mid": 0.5913,
"presence": 0.19119,
"brilliance": 0.08873,
"air": 0.02661,
"ultra": 0.0
},
"octave_band_profile": {
"sub": 1e-05,
"low_bass": 0.00013,
"bass": 0.00033,
"low_mid": 0.07534,
"mid": 0.02635,
"upper_mid": 0.5913,
"presence": 0.19119,
"brilliance": 0.08873,
"air": 0.02661,
"ultra": 0.0
}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 1.0,
"interior_distance_median": 0.0513,
"seam_ratio": 19.494,
"seam_clean": false,
"tail_rms_over_mid": 0.0065,
"head_rms_over_mid": 0.0,
"tail_rms_trend": -0.9559,
"head_rms_trend": 0.3451,
"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": 1939.5,
"spectral_centroid_curve_hz": [
0.0,
2931.9,
1997.9,
1651.0,
1450.5,
1488.6,
1559.4
],
"spectral_rolloff85_hz_mean": 3688.8,
"spectral_flatness_mean": 0.08242,
"signature_colour": "warm"
}
}
}