music/exemplars/formula_cards/EX_006.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": "EX_006",
"title": "Chrono Trigger Main Theme",
"game": "Chrono Trigger",
"composer": "Yasunori Mitsuda",
"purpose_class": "TITLE_CHARACTER",
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Yasunori Mitsuda\\Chrono Trigger (Original Soundtrack) [DS\\1-02 Chrono Trigger.m4a",
"sha256": "66ba99f508fe5ce2ba4bb524bca1b79718b9f1da43e540946d55ff8c40b76b8e",
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"lossless_source": false,
"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": "2026-08-07T11:39:00+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": 31,
"ran_at": "2026-08-07T11:39:00+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."
},
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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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},
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"recurrence_lag_s": 0.464,
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"interval_4gram_repetition": 0.7083
},
"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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"sub",
"low_bass",
"bass",
"low_mid",
"mid",
"upper_mid",
"presence",
"brilliance",
"air",
"ultra"
],
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20,
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15.488,
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17.322,
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34.11,
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]
},
{
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2.368,
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6.13,
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11.053,
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11.749,
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13.63,
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[
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]
},
{
"lane": "bass",
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]
},
{
"lane": "low_mid",
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]
},
{
"lane": "mid",
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]
},
{
"lane": "upper_mid",
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]
},
{
"lane": "presence",
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]
},
{
"lane": "brilliance",
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45.023,
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73.468,
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]
]
},
{
"lane": "air",
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5600,
11200
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]
}
],
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"sub|mid": 0.834,
"sub|upper_mid": 0.8269,
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"baked_fade_in": true
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"ending": "through_or_loop",
"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."
},
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2579.7,
2633.7,
2703.6,
2551.8,
2285.6,
2066.8,
2219.5,
2419.7,
2776.2,
1881.2,
2708.6,
1393.8,
2764.0,
1116.8,
1743.6,
2213.8,
2614.5,
2232.5,
2040.0,
1759.4,
2580.6,
2763.1,
1685.3,
2542.0,
1999.7,
2015.4,
2674.8,
1850.5,
2378.9,
2134.0,
2351.1,
2745.7,
1561.5,
2851.5,
2532.7,
1816.3,
2477.7,
1971.5,
3147.0,
2761.7,
2312.1,
2681.8,
2004.1,
3145.9,
2907.6,
1926.0,
2258.7,
1822.7,
3121.9,
2830.4,
2235.0,
1370.2,
2796.5,
1058.1,
2048.2,
1598.9,
2362.0,
1864.0,
2712.4,
2806.7,
2535.9,
2104.3,
1775.5,
3065.7,
2967.7,
2275.1,
2286.2,
2240.2,
2926.0,
2846.2,
2515.0,
2277.2,
1861.0,
3081.5,
3099.0,
2374.2,
2567.8,
2361.5,
3227.8,
3288.7,
2753.7,
2484.5,
2469.8,
3290.4,
3228.3,
2255.8,
2559.8,
2648.0,
3140.1,
3128.8,
2270.7,
2017.4,
1675.1,
803.4,
1708.0,
1875.9,
2219.5,
2044.5,
2106.8,
2554.8,
1774.8,
1626.5,
2110.3,
2203.2,
2593.5,
1522.5,
2058.8,
2360.7,
2081.1,
2840.4,
2243.1,
2270.4,
2631.8,
2087.4,
2596.8,
2223.8,
1982.8,
2458.6,
1742.0,
2676.6,
1997.1,
1748.5,
2555.4,
1868.6,
2569.6,
2016.2,
2192.9,
2561.1,
2080.0,
2436.8,
2940.4,
2492.5,
2766.6,
2102.2,
1883.8,
1987.2,
2228.8,
2371.0,
1828.6,
1800.9,
2390.5,
2031.2,
2565.2,
2332.2,
2220.2,
2371.5,
2407.9,
2796.8,
2444.6,
2192.9,
2243.1,
3262.3,
3449.6,
3252.8,
2567.4,
2587.8,
0.0,
0.0,
0.0
],
"spectral_rolloff85_hz_mean": 4811.1,
"spectral_flatness_mean": 0.03064,
"signature_colour": "warm"
}
}
}