music/exemplars/formula_cards/UNMATCHED__89_Trainers_Eyes_Meet_Ace_Trainer_.json
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"decoder": "ffmpeg.exe :: ffmpeg version 9.0-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers",
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"format_induced_limit": "lossy source (aac); high-band timbre figures carry codec artefacts and the card declares it",
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"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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"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,
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,
28.24,
28.98,
29.72,
30.46,
31.21,
31.95,
32.69,
33.44,
34.18,
34.92
],
"values": [
0.0689,
0.6332,
0.758,
0.8106,
0.7732,
0.7649,
0.8092,
0.7792,
0.7709,
0.7568,
0.7712,
0.8214,
0.7812,
0.7626,
0.7551,
0.7273,
0.7421,
0.7677,
0.7359,
0.782,
0.7582,
0.7611,
0.7782,
0.7678,
0.7667,
0.777,
0.7677,
0.7641,
0.778,
0.7952,
0.7941,
0.8074,
0.7644,
0.737,
0.7459,
0.7575,
0.8057,
0.7866,
0.76,
0.7676,
0.7756,
0.7176,
0.6641,
0.5717,
0.446,
0.1444,
0.1322,
0.0005
],
"peak_position_normalised": 0.4745
}
},
"complexity_law": {
"available": true,
"bar_length_s": 1.3003,
"bars": 26,
"index_per_bar": [
0.7598,
0.9955,
0.9839,
0.9896,
0.9785,
0.9846,
0.9851,
0.9837,
0.9769,
0.9802,
0.9941,
0.9983,
0.982,
0.9904,
0.9918,
0.9804,
0.974,
0.9863,
0.9822,
0.9877,
0.9804,
1.0,
0.9848,
0.9879,
0.9791,
0.4715
],
"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": 1.3,
"delta": 0.236,
"at_section_boundary": true
},
{
"bar": 25,
"at_s": 32.51,
"delta": -0.508,
"at_section_boundary": false
}
],
"steps_at_section_boundaries": 1,
"steps_total": 2,
"boundary_step_share": 0.5,
"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": 0.657,
"melodic_salience": 0.6698,
"voiced_fraction": 0.1874,
"note_count": 23,
"mean_lanes": 8.276,
"max_lanes": 9
},
"dynamics": {
"dynamic_range_db_p95_minus_p10": 10.82,
"peak_position_normalised": 0.142,
"peak_at_s": 4.969,
"arc_curve_db": [
-63.14,
-68.52,
-10.21,
-9.63,
-9.9,
-9.95,
-9.57,
-9.54,
-10.23,
-10.09,
-9.72,
-9.92,
-10.05,
-10.07,
-9.94,
-10.56,
-10.55,
-10.31,
-10.45,
-10.72,
-10.81,
-10.0,
-9.84,
-9.97,
-9.46,
-9.4,
-10.28,
-10.27,
-9.71,
-9.84,
-9.85,
-9.99,
-10.04,
-10.38,
-10.25,
-10.04,
-10.58,
-10.86,
-11.03,
-10.2,
-10.01,
-11.5,
-13.69,
-18.08,
-25.41,
-37.39,
-94.87,
-82.26
],
"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,
28.24,
28.98,
29.72,
30.46,
31.21,
31.95,
32.69,
33.44,
34.18,
34.92
]
},
"register": {
"melody_span_semitones": 8.67,
"melody_tessitura_midi": 38.0,
"bass_floor_band": {
"sub": 0.09191,
"low_bass": 0.30499,
"bass": 0.1462,
"low_mid": 0.10629,
"mid": 0.08183,
"upper_mid": 0.08205,
"presence": 0.06099,
"brilliance": 0.06195,
"air": 0.01209,
"ultra": 0.0
},
"octave_band_profile": {
"sub": 0.09191,
"low_bass": 0.30499,
"bass": 0.1462,
"low_mid": 0.10629,
"mid": 0.08183,
"upper_mid": 0.08205,
"presence": 0.06099,
"brilliance": 0.06195,
"air": 0.01209,
"ultra": 0.0
}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 1.0,
"interior_distance_median": 0.0329,
"seam_ratio": 30.392,
"seam_clean": false,
"tail_rms_over_mid": 0.0,
"head_rms_over_mid": 0.0,
"tail_rms_trend": -0.8848,
"head_rms_trend": 0.702,
"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": 2396.9,
"spectral_centroid_curve_hz": [
0.0,
2138.0,
2147.4,
3112.3,
2171.2,
2154.8,
2740.7,
2281.7,
2484.0,
2241.0,
2404.4,
3272.8,
2637.8,
2190.6,
2229.9,
2507.0,
2112.7,
2545.0,
2067.8,
3144.5,
2228.1,
2147.3,
2251.9,
2289.5,
1979.2,
2286.8,
2378.4,
2316.2,
2636.9,
2662.6,
2791.0,
2961.6,
2389.0,
1930.4,
2156.4,
2386.6,
3414.5,
3267.7,
2407.0,
2260.2,
2441.8,
2268.7,
2334.3,
1902.3,
2911.0,
2410.0,
2531.5,
0.0
],
"spectral_rolloff85_hz_mean": 5149.9,
"spectral_flatness_mean": 0.05487,
"signature_colour": "warm"
}
}
}