music/exemplars/formula_cards/UNMATCHED__161_Mystery_Gift.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__161_Mystery_Gift",
"title": null,
"game": null,
"composer": null,
"purpose_class": null,
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Compilations\\Pokémon Black & Pokémon White_ Super Mus\\161 Mystery Gift.m4a",
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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": "2026-08-07T01:59:13+00:00",
"format_induced_limit": "lossy source (aac); high-band timbre figures carry codec artefacts and the card declares it",
"control": {
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"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."
},
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"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."
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"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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"bar": 43,
"at_s": 75.88,
"delta": -0.404,
"at_section_boundary": true
},
{
"bar": 44,
"at_s": 77.65,
"delta": -0.243,
"at_section_boundary": false
}
],
"steps_at_section_boundaries": 2,
"steps_total": 3,
"boundary_step_share": 0.667,
"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": 2.691,
"melodic_salience": 0.8577,
"voiced_fraction": 0.5221,
"note_count": 218,
"mean_lanes": 7.433,
"max_lanes": 9
},
"dynamics": {
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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,
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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,
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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,
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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": 42.0,
"melody_tessitura_midi": 45.0,
"bass_floor_band": {
"sub": 0.00695,
"low_bass": 0.19437,
"bass": 0.36051,
"low_mid": 0.08252,
"mid": 0.14085,
"upper_mid": 0.11233,
"presence": 0.04795,
"brilliance": 0.01382,
"air": 0.00227,
"ultra": 0.0
},
"octave_band_profile": {
"sub": 0.00695,
"low_bass": 0.19437,
"bass": 0.36051,
"low_mid": 0.08252,
"mid": 0.14085,
"upper_mid": 0.11233,
"presence": 0.04795,
"brilliance": 0.01382,
"air": 0.00227,
"ultra": 0.0
}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 1.0,
"interior_distance_median": 0.04468,
"seam_ratio": 22.383,
"seam_clean": false,
"tail_rms_over_mid": 0.0,
"head_rms_over_mid": 0.0,
"tail_rms_trend": -0.8412,
"head_rms_trend": 0.5901,
"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": 1645.1,
"spectral_centroid_curve_hz": [
0.0,
1149.5,
1332.4,
1244.3,
1827.4,
2474.6,
1723.7,
2777.2,
2131.9,
1385.2,
1886.9,
2544.6,
1523.4,
1611.9,
1196.7,
1092.8,
1921.1,
1958.2,
1823.7,
1427.6,
1004.3,
1036.2,
1311.6,
1243.4,
1401.6,
955.3,
1872.0,
2054.1,
1041.5,
1287.6,
1666.7,
1552.9,
1599.7,
2227.1,
1846.1,
2050.5,
1734.4,
1818.8,
1755.2,
1866.8,
1402.8,
833.8,
2387.7,
1090.4,
1183.0,
1681.1,
1195.1,
823.6,
2404.4,
1892.5,
1692.2,
2377.8,
1492.6,
2239.3,
1896.7,
1768.5,
1726.3,
1765.0,
2612.3,
2175.3,
1742.5,
1273.4,
1384.8,
1462.3,
2038.0,
1573.6,
1111.5,
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1243.2,
1637.9,
1090.0,
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1570.1,
984.2,
969.1,
2209.1,
1868.2,
1854.5,
1764.3,
1955.3,
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1442.1,
1027.4,
1501.0,
1777.2,
1586.8,
1524.3,
1979.2,
1339.5,
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1282.5,
1691.8,
1311.3,
1220.6,
1427.2,
1830.6,
2256.4,
2319.5,
1913.7,
2121.9,
2388.8,
1475.4,
1712.7,
1457.7,
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1995.1,
1650.9,
0.0
],
"spectral_rolloff85_hz_mean": 3407.0,
"spectral_flatness_mean": 0.02066,
"signature_colour": "warm"
}
}
}