music/exemplars/formula_cards/EX_161.json
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"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_161",
"title": "Aria di Mezzo Carattere",
"game": "Final Fantasy VI",
"composer": "Nobuo Uematsu",
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"adjustment_events": [
{
"position_s": 0.0,
"duration_s": 59.09,
"delta_bpm": -26.7,
"shape": "ramp"
},
{
"position_s": 111.76,
"duration_s": 5.71,
"delta_bpm": -53.39,
"shape": "step"
},
{
"position_s": 228.41,
"duration_s": 2.07,
"delta_bpm": 9.01,
"shape": "step"
},
{
"position_s": 231.48,
"duration_s": 5.5,
"delta_bpm": 28.11,
"shape": "step"
}
],
"dispersion_bpm": 22.763,
"rubato_depth_bpm": 8.444
},
"global_bpm": 143.55,
"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.",
"windowed_tempo_stability": {
"tempo_bpm_global": 143.55,
"tempo_bpm_median_local": 143.55,
"tempo_iqr_bpm": 20.51,
"tempo_stability": 0.4286,
"beat_interval_cv": 0.0397
},
"dominant_onset_period_s": 0.418,
"dominant_onset_period_bpm": 143.55,
"metre": {
"assumed": "4/4",
"measured": null,
"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."
},
"groove": {
"swing_ratio": 0.567,
"onset_rate_per_s": 10.767
}
},
"tonality": {
"key": "D",
"mode": "major",
"windowed_key_agreement": 0.2667,
"modulation_note": "Windowed key agreement below ~0.7 is the modulation signal at rung 1; a pivot-chord map needs symbolic transcription (rung 2)."
},
"the_hook": {
"available": true,
"onset_s": 0.58,
"onset_bars": 0.37,
"pitch_contour": "-UDUU-DDUDUDUU-",
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4,
5,
7,
12
],
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5.0,
0.0,
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7.0,
-2.0,
4.0,
-4.0,
7.0,
5.0,
0.0
],
"range_semitones": 17.0,
"distinctive_deviation": {
"largest_interval_semitones": -12.0,
"at_note_index": 8,
"is_licensed_leap": true
}
},
"motif_economy": {
"self_similarity_peak": 0.8544,
"self_similarity_baseline": 0.5781,
"self_similarity_lift": 0.2763,
"recurrence_lag_s": 0.464,
"interval_3gram_repetition": 0.4439,
"interval_4gram_repetition": 0.3056
},
"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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"low_mid",
"mid",
"upper_mid",
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[
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]
]
},
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34.296,
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]
]
},
{
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]
]
},
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"active_fraction": 0.8373,
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26.169,
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28.677,
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31.254,
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34.667,
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38.081,
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41.494,
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44.907,
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45.79,
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[
55.496,
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],
[
117.702,
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],
[
120.883,
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]
]
},
{
"lane": "mid",
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],
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"exit_s": 233.802,
"active_fraction": 0.9375,
"segments": [
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0.511,
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[
3.924,
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11.424
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[
14.187,
15.511
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[
16.3,
18.924
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[
21.432,
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[
26.122,
55.124
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55.426,
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[
110.899,
112.71
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[
113.662,
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]
]
},
{
"lane": "upper_mid",
"band_hz": [
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],
"entry_s": 3.947,
"exit_s": 233.639,
"active_fraction": 0.9091,
"segments": [
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3.947,
4.621
],
[
7.779,
8.8
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[
9.66,
11.447
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[
14.187,
14.768
],
[
17.601,
18.274
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[
21.92,
22.477
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[
23.336,
25.101
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[
26.122,
29.164
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[
30.395,
55.24
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55.426,
233.639
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]
},
{
"lane": "presence",
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"active_fraction": 0.8723,
"segments": [
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23.057,
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[
26.146,
30.163
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[
30.418,
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[
35.085,
35.782
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[
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40.635
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[
41.076,
44.257
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[
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47.717
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]
},
{
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},
{
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}
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},
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639.4,
561.2,
680.9,
796.7,
850.6,
1057.7,
993.0,
1042.5,
1089.5,
1194.7,
1106.7,
1080.1,
965.0,
823.0,
840.4,
840.2,
877.7,
758.3,
1204.1,
711.9,
738.4,
728.5,
947.6,
731.3,
722.1,
770.3,
684.9,
714.2,
847.4,
783.6,
617.6,
734.0,
896.9,
730.5,
846.3,
929.5,
1568.5,
1635.5,
1644.1,
1238.0,
1177.2,
1293.6,
1497.2,
1432.5,
1637.9,
1776.2,
1787.8,
1715.1,
1907.7,
1721.7,
1758.2,
1502.9,
1685.2,
1521.2,
2129.1,
1839.6,
1407.6,
1468.5,
1507.8,
1676.9,
1400.0,
1458.7,
1422.5,
1601.0,
1399.8,
1424.2,
1521.9,
1361.3,
1470.2,
1429.9,
1431.5,
1524.3,
1487.3,
1731.0,
1140.3,
1178.9,
1439.2,
1532.6,
1678.5,
1767.1,
1676.3,
1731.2,
1763.4,
1824.5,
1581.2,
1636.8,
1859.0,
1559.6,
1656.1,
1780.0,
1754.6,
1571.1,
1677.3,
1422.9,
1480.7,
1370.5,
1512.9,
1543.3,
1335.5,
1276.3,
1145.6,
1087.0,
1235.1,
1114.4,
1114.6,
1157.5,
1212.4,
1324.2,
1454.8,
1559.2,
2647.3,
2721.8,
3115.1,
2784.1,
2650.4,
2441.8,
2663.9,
2923.4,
2432.3,
2744.4,
2415.8,
2109.9,
1962.2,
1796.9,
1850.3,
1603.0,
1756.1,
1561.3,
1823.0,
2076.7,
2366.2,
1906.9,
1989.8,
1979.4,
1786.5,
1754.8,
1876.0,
1711.1,
1561.2,
1521.3,
1536.4,
1679.4,
1571.6,
1645.0,
1581.2,
1696.0,
1835.4,
1883.6,
1771.1,
1687.5,
1843.3,
1695.1,
1613.8,
1821.3,
1838.5,
1547.1,
1497.7,
1604.4,
1763.7,
1623.3,
1592.6,
1615.6,
1568.1,
1542.9,
1587.8,
1489.7,
1438.8,
1572.7,
1491.6,
1712.8,
1698.4,
2028.7,
1363.3,
1297.5,
1430.3,
1728.6,
1824.0,
1986.8,
1966.5,
2182.0,
1998.8,
1949.1,
1858.7,
2026.8,
1836.6,
1869.5,
1786.6,
2116.9,
1855.9,
1902.5,
1544.7,
1801.0,
1881.6,
1613.9,
1575.4,
1580.2,
1712.5,
1564.1,
1680.4,
1554.3,
1680.8,
1587.6,
1621.2,
1623.1,
1887.7,
1823.3,
1956.3,
1337.1,
1330.0,
1574.7,
1781.3,
1993.1,
1926.4,
1965.7,
2085.1,
1967.3,
1912.2,
1707.3,
1868.4,
1888.6,
1712.4,
1788.5,
2101.3,
1814.6,
1587.5,
1733.0,
1815.4,
1599.7,
1763.0,
1630.5,
1716.4,
1529.4,
1527.2,
1488.0,
1446.5,
1382.3,
1521.8,
1488.5,
1465.8,
1570.4,
1746.1,
1545.2,
1538.2,
1503.9,
1639.4,
1589.1,
1643.3,
1718.1,
1635.0,
1843.0,
1740.9,
1741.8,
1794.7,
1904.2,
1733.5,
1780.8,
1761.2,
1678.0,
1629.9,
1541.5,
1486.0,
1523.3,
1992.2,
1629.2,
1577.2,
1558.9,
1570.2,
1542.3,
1475.6,
1518.7,
1559.3,
1547.9,
1498.2,
1504.6,
1529.2,
1564.1,
1598.3,
2068.0,
2905.2,
0.0,
0.0
],
"spectral_rolloff85_hz_mean": 3009.2,
"spectral_flatness_mean": 0.01237,
"signature_colour": "warm"
}
}
}