music/exemplars/formula_cards/UNMATCHED__156_Surf.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__156_Surf",
"title": null,
"game": null,
"composer": null,
"purpose_class": null,
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Compilations\\Pokémon Black & Pokémon White_ Super Mus\\156 Surf.m4a",
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"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": "2026-08-07T01:55:47+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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"shape": "ramp"
}
],
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},
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"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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"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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"modulation_note": "Windowed key agreement below ~0.7 is the modulation signal at rung 1; a pivot-chord map needs symbolic transcription (rung 2)."
},
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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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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,
81.73,
82.48,
83.22,
83.96
]
},
"register": {
"melody_span_semitones": 4.0,
"melody_tessitura_midi": 38.0,
"bass_floor_band": {
"sub": 0.00923,
"low_bass": 0.22274,
"bass": 0.10823,
"low_mid": 0.07634,
"mid": 0.28846,
"upper_mid": 0.17145,
"presence": 0.07053,
"brilliance": 0.02556,
"air": 0.0029,
"ultra": 0.0
},
"octave_band_profile": {
"sub": 0.00923,
"low_bass": 0.22274,
"bass": 0.10823,
"low_mid": 0.07634,
"mid": 0.28846,
"upper_mid": 0.17145,
"presence": 0.07053,
"brilliance": 0.02556,
"air": 0.0029,
"ultra": 0.0
}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 1.0,
"interior_distance_median": 0.02648,
"seam_ratio": 37.758,
"seam_clean": false,
"tail_rms_over_mid": 0.0,
"head_rms_over_mid": 0.0,
"tail_rms_trend": -0.8813,
"head_rms_trend": 0.8088,
"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": 1887.2,
"spectral_centroid_curve_hz": [
0.0,
2437.6,
1164.5,
2100.4,
1617.9,
1974.8,
1665.2,
1935.4,
2165.3,
2089.2,
1897.2,
1910.4,
2151.1,
2136.5,
2156.6,
2104.7,
1943.3,
1768.2,
1952.0,
2358.5,
1180.5,
2166.5,
2238.4,
2126.5,
1912.8,
1778.5,
1308.3,
2434.7,
1702.5,
1783.2,
2450.5,
2251.7,
2284.8,
1715.2,
1778.3,
1381.5,
2156.9,
2569.5,
2223.1,
2156.2,
1711.8,
2145.3,
1608.0,
1563.7,
1506.3,
2224.6,
2052.8,
2325.5,
2038.2,
1496.8,
1532.5,
1858.2,
1931.6,
1608.8,
1938.9,
2111.0,
2418.8,
1587.0,
1437.8,
2119.2,
2344.0,
2044.8,
1943.5,
1829.9,
2209.2,
2530.3,
1599.7,
1465.0,
2215.6,
2351.7,
1685.4,
1309.0,
1311.9,
1808.5,
2621.0,
1629.7,
1733.6,
1987.3,
1962.1,
1511.3,
1975.7,
1860.8,
2215.2,
2451.7,
2142.1,
1890.1,
1891.0,
2264.9,
1821.7,
1797.4,
1697.3,
2166.6,
2037.3,
1856.7,
1723.4,
1591.5,
1756.6,
1881.7,
1790.9,
1403.9,
2238.5,
1924.8,
2210.7,
1386.6,
1612.5,
2094.1,
2156.0,
1925.9,
1918.8,
1613.7,
2396.8,
2095.3,
2004.1,
0.0
],
"spectral_rolloff85_hz_mean": 3900.9,
"spectral_flatness_mean": 0.0227,
"signature_colour": "warm"
}
}
}