music/exemplars/formula_cards/UNMATCHED__176_Another_Chapter_in_Looker_s_Tale.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__176_Another_Chapter_in_Looker_s_Tale",
"title": null,
"game": null,
"composer": null,
"purpose_class": null,
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Compilations\\Pokémon X & Pokémon Y_ Super Music Colle\\176 Another Chapter in Looker's Tale.m4a",
"sha256": "e5051ce68ed34239cafefa1abaf455aab2c6f753875847727073fb319e034978",
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"source_format": "mov,mp4,m4a,3gp,3g2,mj2",
"source_codec": "aac",
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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": "2026-08-07T04:03:01+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."
},
"card": {
"duration_and_structure": {
"total_length_s": 5.805,
"section_boundaries_s": [
0.0,
0.488,
5.805
],
"section_count": 2,
"repeat_map": [
{
"section": 0,
"most_like_section": null,
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"is_repeat": false
},
{
"section": 1,
"most_like_section": 0,
"similarity": 0.9017,
"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": 123.05,
"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,
5.2,
5.57
],
"curve_bpm": [
198.77,
198.77,
198.77,
198.77,
198.77,
198.77,
28.4,
28.4,
28.4,
103.36,
103.36,
107.67,
107.67,
123.05,
123.05,
287.11
],
"adjustment_events": [
{
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"duration_s": 2.69,
"delta_bpm": -34.01,
"shape": "step"
}
],
"dispersion_bpm": 70.829,
"rubato_depth_bpm": 170.373
},
"global_bpm": 103.36,
"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": 103.36,
"tempo_bpm_median_local": 103.36,
"tempo_iqr_bpm": 19.69,
"tempo_stability": 0.2381,
"beat_interval_cv": 0.0194
},
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"dominant_onset_period_bpm": 28.4,
"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": 0.482,
"onset_rate_per_s": 10.809
}
},
"tonality": {
"key": "C",
"mode": "major",
"windowed_key_agreement": 0.0,
"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": true,
"onset_s": 1.579,
"onset_bars": 0.81,
"pitch_contour": "D--",
"interval_vocabulary_semitones": [
0,
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"intervals": [
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-0.33,
-0.33
],
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"distinctive_deviation": {
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"at_note_index": 1,
"is_licensed_leap": true
}
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"self_similarity_lift": 0.1955,
"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": [
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"low_bass",
"bass",
"low_mid",
"mid",
"upper_mid",
"presence",
"brilliance",
"air",
"ultra"
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{
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"active_fraction": 0.3108,
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[
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]
},
{
"lane": "low_bass",
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45,
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],
"entry_s": 1.44,
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"active_fraction": 0.4024,
"segments": [
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]
},
{
"lane": "bass",
"band_hz": [
90,
180
],
"entry_s": 1.44,
"exit_s": 2.415,
"active_fraction": 0.259,
"segments": [
[
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2.415
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]
},
{
"lane": "low_mid",
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180,
355
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"active_fraction": 0.4422,
"segments": [
[
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3.042
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]
},
{
"lane": "mid",
"band_hz": [
355,
710
],
"entry_s": 0.488,
"exit_s": 3.111,
"active_fraction": 0.4542,
"segments": [
[
0.488,
3.111
]
]
},
{
"lane": "upper_mid",
"band_hz": [
710,
1400
],
"entry_s": 0.488,
"exit_s": 3.135,
"active_fraction": 0.4582,
"segments": [
[
0.488,
3.135
]
]
},
{
"lane": "presence",
"band_hz": [
1400,
2800
],
"entry_s": 0.488,
"exit_s": 3.065,
"active_fraction": 0.4462,
"segments": [
[
0.488,
3.065
]
]
},
{
"lane": "brilliance",
"band_hz": [
2800,
5600
],
"entry_s": 0.488,
"exit_s": 3.042,
"active_fraction": 0.4422,
"segments": [
[
0.488,
3.042
]
]
},
{
"lane": "air",
"band_hz": [
5600,
11200
],
"entry_s": 0.488,
"exit_s": 2.972,
"active_fraction": 0.4303,
"segments": [
[
0.488,
2.972
]
]
}
],
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"sub|low_mid": 0.5882,
"sub|mid": 0.6134,
"sub|upper_mid": 0.6218,
"sub|presence": 0.5966,
"sub|brilliance": 0.5882,
"sub|air": 0.563,
"low_bass|bass": 0.6436,
"low_bass|low_mid": 0.493,
"low_bass|mid": 0.5141,
"low_bass|upper_mid": 0.5211,
"low_bass|presence": 0.5,
"low_bass|brilliance": 0.493,
"low_bass|air": 0.4718,
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"bass|mid": 0.5702,
"bass|upper_mid": 0.5652,
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"bass|air": 0.5586,
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"low_mid|upper_mid": 0.9652,
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"low_mid|brilliance": 1.0,
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"mid|upper_mid": 0.9913,
"mid|presence": 0.9825,
"mid|brilliance": 0.9737,
"mid|air": 0.9474,
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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,
5.016,
5.201,
5.387,
5.573,
5.759
],
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0,
0,
6,
6,
6,
6,
6,
9,
9,
9,
9,
9,
9,
9,
9,
9,
2,
1,
1,
1,
0,
0,
0,
0,
0,
0,
0,
0,
0,
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0
],
"max": 9,
"mean": 3.645
},
"register_spacing_octaves": [
1.085,
1.0,
0.99,
0.99,
0.99,
0.99,
1.0,
1.0
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},
"event_grammar": {
"drops": [
{
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"db_delta": -4.84,
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},
{
"position": 0.66,
"at_s": 3.831,
"db_delta": -11.05,
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"bars_held_s": 1.393,
"re_enters_at_s": 5.224
},
{
"position": 0.868,
"at_s": 5.039,
"db_delta": -88.1,
"lanes_removed": -0.0,
"bars_held_s": 0.186,
"re_enters_at_s": 5.224
}
],
"raises": [
{
"position": 0.104,
"start_s": 0.604,
"end_s": 1.974,
"db_delta": 128.47,
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}
],
"breaks": [
{
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"at_s": 0.0,
"duration_s": 0.441
},
{
"position": 0.732,
"at_s": 4.249,
"duration_s": 1.556
}
],
"tuttis": [
{
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"duration_s": 1.37,
"lanes": 9
}
],
"silence_budget": {
"fraction": 0.3506,
"seconds": 2.035,
"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": 1
}
},
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"time_to_hook_bars": 0.81,
"time_to_full_texture_s": 1.44,
"time_to_full_texture_bars": 0.74,
"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,
5.2
],
"values": [
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0.525,
0.718,
0.7048,
0.5715,
0.165,
0.0764,
0.2008
],
"peak_position_normalised": 0.316
}
},
"complexity_law": {
"available": true,
"bar_length_s": 1.9504,
"bars": 2,
"index_per_bar": [
1.0,
0.9739
],
"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": [],
"steps_at_section_boundaries": 0,
"steps_total": 0,
"boundary_step_share": null,
"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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"melodic_salience": 0.7625,
"voiced_fraction": 0.2615,
"note_count": 4,
"mean_lanes": 3.645,
"max_lanes": 9
},
"dynamics": {
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"peak_position_normalised": 0.264,
"peak_at_s": 1.533,
"arc_curve_db": [
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-68.84,
-10.77,
-11.8,
-23.03,
-37.89,
-58.05,
-110.62
],
"arc_times_s": [
0.0,
0.74,
1.49,
2.23,
2.97,
3.72,
4.46,
5.2
]
},
"register": {
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"melody_tessitura_midi": 36.5,
"bass_floor_band": {
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"low_bass": 0.08093,
"bass": 0.15823,
"low_mid": 0.11902,
"mid": 0.15021,
"upper_mid": 0.22843,
"presence": 0.17757,
"brilliance": 0.05187,
"air": 0.01111,
"ultra": 0.0
},
"octave_band_profile": {
"sub": 0.02245,
"low_bass": 0.08093,
"bass": 0.15823,
"low_mid": 0.11902,
"mid": 0.15021,
"upper_mid": 0.22843,
"presence": 0.17757,
"brilliance": 0.05187,
"air": 0.01111,
"ultra": 0.0
}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 1.0,
"interior_distance_median": 0.01241,
"seam_ratio": 80.601,
"seam_clean": false,
"tail_rms_over_mid": 0.0,
"head_rms_over_mid": 0.0,
"tail_rms_trend": -0.8289,
"head_rms_trend": 0.643,
"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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2817.6,
1756.4,
2284.6,
1797.8,
1996.8,
1889.4,
5319.1
],
"spectral_rolloff85_hz_mean": 4064.9,
"spectral_flatness_mean": 0.19097,
"signature_colour": "warm"
}
}
}