music/exemplars/formula_cards/UNMATCHED__53_Route_4_Spring_.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__53_Route_4_Spring_",
"title": null,
"game": null,
"composer": null,
"purpose_class": null,
"source_path": "D:\\audio\\exemplars\\iTunes_Sweep\\Compilations\\Pokémon Black & Pokémon White_ Super Mus\\53 Route 4 (Spring).m4a",
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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": "2026-08-07T02:22:15+00:00",
"format_induced_limit": "lossy source (aac); high-band timbre figures carry codec artefacts and the card declares it",
"control": {
"controls_passed": 24,
"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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{
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"shape": "step"
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{
"position_s": 14.56,
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"shape": "step"
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{
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"shape": "step"
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{
"position_s": 81.36,
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"shape": "step"
}
],
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"rubato_depth_bpm": 0.0
},
"global_bpm": 129.2,
"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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"tempo_bpm_median_local": 129.2,
"tempo_iqr_bpm": 0.0,
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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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"mode": "major",
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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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"onset_bars": 1.29,
"pitch_contour": "-DUUDUUUD--DUUD",
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5,
7,
12,
21,
23,
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21.33,
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2.0,
7.0,
5.0,
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0.0,
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12.0,
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}
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"recurrence_lag_s": 33.251,
"interval_3gram_repetition": 0.0816,
"interval_4gram_repetition": 0.0208
},
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"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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"mid",
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43.003,
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70.891,
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76.254,
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78.53,
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22.709,
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25.704,
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29.396,
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30.279,
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31.486,
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36.78,
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37.709,
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38.638,
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39.544,
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43.027,
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45.279,
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46.695,
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48.53,
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50.411,
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54.102,
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55.937,
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58.955,
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62.624,
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63.507,
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64.76,
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66.223,
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70.031,
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70.937,
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71.866,
72.469
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72.795,
75.581
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76.254,
76.858
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78.53,
79.18
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]
},
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180
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2.601,
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4.203,
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6.293,
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12.051,
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13.468,
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15.279,
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19.435,
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20.875,
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25.31,
28.305
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29.002,
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43.027,
44.675
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44.861,
46.463
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48.53,
49.76
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50.411,
53.917
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54.102,
57.864
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58.538,
61.556
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[
62.229,
76.092
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76.254,
77.88
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]
},
{
"lane": "low_mid",
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355
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"entry_s": 0.511,
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"active_fraction": 0.9527,
"segments": [
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0.511,
2.368
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2.601,
3.344
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[
3.506,
80.875
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]
},
{
"lane": "mid",
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355,
710
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"active_fraction": 0.9569,
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0.511,
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1.672,
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2.601,
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3.506,
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},
{
"lane": "upper_mid",
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710,
1400
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"active_fraction": 0.9594,
"segments": [
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0.534,
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]
},
{
"lane": "presence",
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1400,
2800
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"entry_s": 0.998,
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"segments": [
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0.998,
80.434
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]
},
{
"lane": "brilliance",
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2800,
5600
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"segments": [
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0.58,
2.392
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2.601,
3.344
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3.529,
5.178
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{
"lane": "air",
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5600,
11200
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0.511,
2.438
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0.736,
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0.8288,
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0.6848,
0.6877,
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0.7117,
0.7005,
0.7061,
0.754,
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0.8065,
0.7592,
0.7042,
0.6719,
0.5537,
0.6118,
0.5192,
0.4483,
0.2173,
0.1286,
0.1609,
0.1256,
0.0001
],
"peak_position_normalised": 0.3962
}
},
"complexity_law": {
"available": true,
"bar_length_s": 1.8576,
"bars": 45,
"index_per_bar": [
0.7793,
0.8461,
0.9379,
0.9126,
0.9864,
0.9457,
0.9451,
0.9329,
0.964,
0.9623,
0.9392,
0.9413,
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0.9601,
0.9565,
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0.8632,
0.9456,
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0.9516,
0.9805,
1.0,
0.9727,
0.9668,
0.9785,
0.9732,
0.9325,
0.8968,
0.5212,
0.0375
],
"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": 43,
"at_s": 79.88,
"delta": -0.376,
"at_section_boundary": false
},
{
"bar": 44,
"at_s": 81.73,
"delta": -0.484,
"at_section_boundary": false
}
],
"steps_at_section_boundaries": 0,
"steps_total": 2,
"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": {
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"melodic_salience": 0.5714,
"voiced_fraction": 0.1175,
"note_count": 52,
"mean_lanes": 7.831,
"max_lanes": 9
},
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"arc_times_s": [
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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,
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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,
81.73,
82.48,
83.22,
83.96
]
},
"register": {
"melody_span_semitones": 45.0,
"melody_tessitura_midi": 47.0,
"bass_floor_band": {
"sub": 0.00065,
"low_bass": 0.0257,
"bass": 0.11968,
"low_mid": 0.17122,
"mid": 0.26951,
"upper_mid": 0.22172,
"presence": 0.15382,
"brilliance": 0.03024,
"air": 0.0033,
"ultra": 0.0
},
"octave_band_profile": {
"sub": 0.00065,
"low_bass": 0.0257,
"bass": 0.11968,
"low_mid": 0.17122,
"mid": 0.26951,
"upper_mid": 0.22172,
"presence": 0.15382,
"brilliance": 0.03024,
"air": 0.0033,
"ultra": 0.0
}
},
"cadence_and_ending": {
"loop_seam": {
"measurable": true,
"seam_distance": 1.0,
"interior_distance_median": 0.04577,
"seam_ratio": 21.851,
"seam_clean": false,
"tail_rms_over_mid": 0.0,
"head_rms_over_mid": 0.0,
"tail_rms_trend": -0.8534,
"head_rms_trend": 0.8537,
"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": 1932.6,
"spectral_centroid_curve_hz": [
0.0,
1213.5,
2314.1,
2122.5,
1547.1,
2052.2,
1848.8,
1658.1,
2182.2,
2052.1,
1873.5,
2164.4,
2133.7,
2002.4,
1312.8,
1762.3,
2153.6,
1552.4,
1920.3,
1664.0,
2208.8,
1771.2,
1746.0,
2025.8,
1679.0,
1940.2,
1713.3,
1843.6,
1946.2,
2044.9,
1889.7,
1852.7,
1797.9,
2169.1,
1851.6,
2184.8,
2154.4,
1736.3,
2028.3,
1889.8,
2313.8,
2061.9,
2212.5,
1841.2,
2138.4,
2130.1,
1784.6,
2160.4,
1989.5,
1991.5,
2238.8,
1552.1,
2172.5,
1897.1,
1873.2,
2305.7,
1846.5,
2403.2,
1757.6,
2305.3,
1777.0,
1830.3,
2050.6,
1587.4,
1969.4,
1939.6,
2211.5,
1936.8,
1759.1,
2116.9,
2035.4,
1764.7,
1803.3,
1693.6,
1635.3,
2069.9,
2574.6,
1914.9,
1986.3,
1817.2,
2238.9,
1763.0,
1907.2,
1772.5,
1800.9,
2178.0,
2280.0,
2003.9,
1836.2,
2304.3,
2027.0,
1029.4,
1403.7,
1568.0,
3077.3,
1826.8,
1697.0,
1629.6,
1426.8,
1905.0,
1754.4,
2593.1,
2157.0,
1802.2,
1645.4,
2176.0,
1784.0,
2109.1,
1602.7,
1500.4,
1696.7,
2441.8,
1992.6,
0.0
],
"spectral_rolloff85_hz_mean": 3801.8,
"spectral_flatness_mean": 0.02125,
"signature_colour": "warm"
}
}
}