music/exemplars/formula_cards/UNMATCHED__77_Route_225_Day_.json
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"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__77_Route_225_Day_",
"title": null,
"game": null,
"composer": null,
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"decoder": "ffmpeg.exe :: ffmpeg version 9.0-full_build-www.gyan.dev Copyright (c) 2000-2026 the FFmpeg developers",
"measured_at": "2026-08-07T03:29:46+00:00",
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"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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0.9927,
1.0,
0.9891,
0.9831,
0.9731,
0.9644,
0.9664,
0.9887,
0.9922,
0.9891,
0.9839,
0.9893,
0.9694,
0.9652,
0.9384,
0.9551,
0.8653,
0.9885,
0.8487,
0.1585
],
"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": 10,
"at_s": 16.72,
"delta": -0.177,
"at_section_boundary": false
},
{
"bar": 13,
"at_s": 21.73,
"delta": 0.242,
"at_section_boundary": false
},
{
"bar": 14,
"at_s": 23.41,
"delta": -0.195,
"at_section_boundary": false
},
{
"bar": 15,
"at_s": 25.08,
"delta": 0.19,
"at_section_boundary": false
},
{
"bar": 47,
"at_s": 78.58,
"delta": -0.69,
"at_section_boundary": false
}
],
"steps_at_section_boundaries": 0,
"steps_total": 5,
"boundary_step_share": 0.0,
"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": 1.282,
"melodic_salience": 0.6858,
"voiced_fraction": 0.2139,
"note_count": 104,
"mean_lanes": 7.821,
"max_lanes": 9
},
"dynamics": {
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"peak_position_normalised": 0.683,
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-16.15,
-17.28,
-21.13,
-27.23,
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-47.64,
-66.3,
-43.77
],
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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,
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,
58.7,
59.44,
60.19,
60.93,
61.67,
62.42,
63.16,
63.9,
64.64,
65.39,
66.13,
66.87,
67.62,
68.36,
69.1,
69.85,
70.59,
71.33,
72.07,
72.82,
73.56,
74.3,
75.05,
75.79,
76.53,
77.28,
78.02,
78.76,
79.51,
80.25,
80.99
]
},
"register": {
"melody_span_semitones": 36.0,
"melody_tessitura_midi": 42.5,
"bass_floor_band": {
"sub": 0.0085,
"low_bass": 0.28236,
"bass": 0.22378,
"low_mid": 0.17569,
"mid": 0.16537,
"upper_mid": 0.05145,
"presence": 0.04263,
"brilliance": 0.03536,
"air": 0.01444,
"ultra": 0.0
},
"octave_band_profile": {
"sub": 0.0085,
"low_bass": 0.28236,
"bass": 0.22378,
"low_mid": 0.17569,
"mid": 0.16537,
"upper_mid": 0.05145,
"presence": 0.04263,
"brilliance": 0.03536,
"air": 0.01444,
"ultra": 0.0
}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 1.0,
"interior_distance_median": 0.03368,
"seam_ratio": 29.691,
"seam_clean": false,
"tail_rms_over_mid": 0.0005,
"head_rms_over_mid": 0.0,
"tail_rms_trend": -0.8322,
"head_rms_trend": 0.5751,
"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": 2613.7,
"spectral_centroid_curve_hz": [
0.0,
1485.8,
1680.5,
3550.4,
2965.3,
3058.4,
2527.6,
2790.8,
3068.1,
2487.9,
2673.8,
2954.6,
3018.9,
1481.6,
2425.4,
3409.2,
3090.5,
2750.4,
2430.9,
2214.3,
2938.5,
2871.0,
2534.4,
1849.3,
3762.7,
2894.6,
2719.5,
3492.0,
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3245.4,
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2908.0,
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2663.6,
2101.0,
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2276.1,
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3942.1,
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1870.5,
1217.1,
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2867.3,
1687.9,
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1897.4,
2464.3,
2858.7,
1751.1,
1987.8,
2234.4,
3079.9,
2179.4,
2793.8,
1982.2,
3152.8,
2523.1,
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2391.0,
3481.8,
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2253.4,
2514.7,
2951.0,
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3136.9,
2643.7,
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2685.6,
3283.2,
2545.4,
3050.1,
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1945.4,
2314.1,
3438.1,
2943.5,
1645.8,
3160.9,
2411.5,
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2997.6,
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1436.3
],
"spectral_rolloff85_hz_mean": 5833.5,
"spectral_flatness_mean": 0.04287,
"signature_colour": "bright"
}
}
}