music/proof/cards/formula_cards/NOCORPUS__MPX_CH02_EXPLORE_r1.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": "NOCORPUS__MPX_CH02_EXPLORE_r1",
"title": null,
"game": null,
"composer": null,
"purpose_class": null,
"source_path": "C:\\dev\\humanity-forgotten\\build\\audio\\proof\\audio\\MPX_CH02_EXPLORE_r1.wav",
"sha256": "ac64e80f2bc1fd93c269549fa8dc9e0f1ce789194d2bcd2df9066e4a2ddaef82",
"bytes": 33792088,
"source_format": "wav",
"source_codec": "pcm_f32le",
"source_sample_rate_hz": 48000,
"source_channels": 2,
"lossless_source": true,
"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": "2026-08-06T13:09:00+00:00",
"format_induced_limit": null,
"control": {
"controls_passed": 24,
"controls_total": 24,
"ran_at": "2026-08-06T13:09:00+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": {
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12.91,
20.805,
28.979,
36.873,
47.74,
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69.474,
82.477,
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"position_s": 13.42,
"duration_s": 9.43,
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"shape": "step"
},
{
"position_s": 24.13,
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"shape": "step"
},
{
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"shape": "step"
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{
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"shape": "step"
},
{
"position_s": 84.71,
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"shape": "step"
}
],
"dispersion_bpm": 47.841,
"rubato_depth_bpm": 86.133
},
"global_bpm": 86.13,
"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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"tempo_bpm_median_local": 86.13,
"tempo_iqr_bpm": 86.13,
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"metre": {
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"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": {
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"onset_rate_per_s": 10.772
}
},
"tonality": {
"key": "E",
"mode": "minor",
"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": true,
"onset_s": 0.093,
"onset_bars": 0.07,
"pitch_contour": "-DU-UDUDDUD--UD",
"interval_vocabulary_semitones": [
0,
5,
7,
12
],
"intervals": [
0.0,
-5.0,
5.0,
0.0,
7.0,
-7.0,
7.0,
-7.0,
-5.0,
12.0,
-7.0,
0.0,
0.0,
7.0,
-7.0
],
"range_semitones": 12.0,
"distinctive_deviation": {
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"at_note_index": 10,
"is_licensed_leap": true
}
},
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"recurrence_lag_s": 0.697,
"interval_3gram_repetition": 0.2915,
"interval_4gram_repetition": 0.1126
},
"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.",
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"low_mid",
"mid",
"upper_mid",
"presence",
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"air",
"ultra"
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]
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},
{
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62.09,
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"note": "Section 11.2 treats rest as a FIRST-CLASS parameter, not an absence."
},
"counts": {
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"raises": 17,
"breaks": 1,
"tuttis": 0
}
},
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"first_sound_at_s": 0.0,
"time_to_hook_s": 0.093,
"time_to_hook_bars": 0.07,
"time_to_full_texture_s": 50.318,
"time_to_full_texture_bars": 36.12,
"flow_curve": {
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0.74,
1.49,
2.23,
2.97,
3.72,
4.46,
5.2,
5.94,
6.69,
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8.17,
8.92,
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10.4,
11.15,
11.89,
12.63,
13.37,
14.12,
14.86,
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16.35,
17.09,
17.83,
18.58,
19.32,
20.06,
20.81,
21.55,
22.29,
23.03,
23.78,
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25.26,
26.01,
26.75,
27.49,
28.24,
28.98,
29.72,
30.46,
31.21,
31.95,
32.69,
33.44,
34.18,
34.92,
35.67,
36.41,
37.15,
37.89,
38.64,
39.38,
40.12,
40.87,
41.61,
42.35,
43.1,
43.84,
44.58,
45.33,
46.07,
46.81,
47.55,
48.3,
49.04,
49.78,
50.53,
51.27,
52.01,
52.76,
53.5,
54.24,
54.98,
55.73,
56.47,
57.21,
57.96,
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59.44,
60.19,
60.93,
61.67,
62.42,
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66.13,
66.87,
67.62,
68.36,
69.1,
69.85,
70.59,
71.33,
72.07,
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74.3,
75.05,
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76.53,
77.28,
78.02,
78.76,
79.51,
80.25,
80.99,
81.73,
82.48,
83.22,
83.96,
84.71,
85.45,
86.19,
86.94,
87.68
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"values": [
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],
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}
},
"complexity_law": {
"available": true,
"bar_length_s": 1.3932,
"bars": 63,
"index_per_bar": [
0.5031,
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],
"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": 13,
"at_s": 18.11,
"delta": -0.153,
"at_section_boundary": false
},
{
"bar": 15,
"at_s": 20.9,
"delta": -0.17,
"at_section_boundary": true
},
{
"bar": 16,
"at_s": 22.29,
"delta": 0.17,
"at_section_boundary": false
},
{
"bar": 17,
"at_s": 23.68,
"delta": -0.233,
"at_section_boundary": false
},
{
"bar": 18,
"at_s": 25.08,
"delta": 0.164,
"at_section_boundary": false
},
{
"bar": 23,
"at_s": 32.04,
"delta": -0.249,
"at_section_boundary": false
},
{
"bar": 35,
"at_s": 48.76,
"delta": 0.157,
"at_section_boundary": true
},
{
"bar": 36,
"at_s": 50.15,
"delta": 0.397,
"at_section_boundary": false
},
{
"bar": 40,
"at_s": 55.73,
"delta": -0.202,
"at_section_boundary": false
},
{
"bar": 44,
"at_s": 61.3,
"delta": -0.228,
"at_section_boundary": false
},
{
"bar": 52,
"at_s": 72.44,
"delta": -0.238,
"at_section_boundary": false
},
{
"bar": 60,
"at_s": 83.59,
"delta": -0.416,
"at_section_boundary": true
},
{
"bar": 61,
"at_s": 84.98,
"delta": -0.283,
"at_section_boundary": false
},
{
"bar": 62,
"at_s": 86.38,
"delta": -0.176,
"at_section_boundary": false
}
],
"steps_at_section_boundaries": 3,
"steps_total": 14,
"boundary_step_share": 0.214,
"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": 2.568,
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"voiced_fraction": 0.7439,
"note_count": 226,
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"max_lanes": 9
},
"dynamics": {
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38.64,
39.38,
40.12,
40.87,
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49.04,
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54.24,
54.98,
55.73,
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84.71,
85.45,
86.19,
86.94,
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},
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"melody_tessitura_midi": 43.17,
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"low_bass": 0.11186,
"bass": 0.61061,
"low_mid": 0.20022,
"mid": 0.06548,
"upper_mid": 0.00593,
"presence": 0.00264,
"brilliance": 0.00152,
"air": 0.00064,
"ultra": 0.0
},
"octave_band_profile": {
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"low_bass": 0.11186,
"bass": 0.61061,
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"mid": 0.06548,
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},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 0.89733,
"interior_distance_median": 0.04481,
"seam_ratio": 20.026,
"seam_clean": false,
"tail_rms_over_mid": 0.0122,
"head_rms_over_mid": 0.7966,
"tail_rms_trend": -0.5823,
"head_rms_trend": -0.0251,
"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": {
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1416.1,
537.3,
486.0,
614.9,
665.5,
645.2,
1110.8,
1042.0,
643.9,
546.3,
603.0,
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634.2,
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"spectral_rolloff85_hz_mean": 2166.6,
"spectral_flatness_mean": 0.00137,
"signature_colour": "dark"
}
}
}