music/exemplars/formula_cards/UNMATCHED__3-13_World_Revolution.json
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{
"position_s": 0.19,
"duration_s": 2.81,
"delta_bpm": 69.06,
"shape": "step"
},
{
"position_s": 3.81,
"duration_s": 16.7,
"delta_bpm": -48.67,
"shape": "step"
},
{
"position_s": 21.29,
"duration_s": 6.27,
"delta_bpm": -40.67,
"shape": "step"
},
{
"position_s": 36.15,
"duration_s": 10.77,
"delta_bpm": -49.63,
"shape": "step"
},
{
"position_s": 57.14,
"duration_s": 24.57,
"delta_bpm": -71.52,
"shape": "step"
},
{
"position_s": 107.04,
"duration_s": 7.13,
"delta_bpm": -42.25,
"shape": "step"
},
{
"position_s": 129.92,
"duration_s": 10.91,
"delta_bpm": -49.74,
"shape": "step"
},
{
"position_s": 151.14,
"duration_s": 24.5,
"delta_bpm": -71.77,
"shape": "step"
},
{
"position_s": 200.99,
"duration_s": 7.31,
"delta_bpm": -42.54,
"shape": "step"
},
{
"position_s": 223.86,
"duration_s": 10.82,
"delta_bpm": -49.67,
"shape": "step"
}
],
"dispersion_bpm": 36.59,
"rubato_depth_bpm": 83.196
},
"global_bpm": 107.67,
"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": 107.67,
"tempo_bpm_median_local": 107.67,
"tempo_iqr_bpm": 4.31,
"tempo_stability": 0.84,
"beat_interval_cv": 0.0399
},
"dominant_onset_period_s": 0.1858,
"dominant_onset_period_bpm": 323.0,
"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": 0.665,
"onset_rate_per_s": 10.769
}
},
"tonality": {
"key": "A",
"mode": "minor",
"windowed_key_agreement": 0.4677,
"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": 0.673,
"onset_bars": 0.45,
"pitch_contour": "UDDUDUUDUDUDU-D",
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12,
17,
19,
22,
24,
27,
29,
31,
33,
34
],
"intervals": [
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-12.0,
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27.0,
-27.0,
12.0,
22.0,
-34.0,
33.0,
-33.0,
31.0,
-19.0,
17.0,
0.0,
-29.0
],
"range_semitones": 34.0,
"distinctive_deviation": {
"largest_interval_semitones": -34.0,
"at_note_index": 8,
"is_licensed_leap": true
}
},
"motif_economy": {
"self_similarity_peak": 0.9096,
"self_similarity_baseline": 0.7549,
"self_similarity_lift": 0.1547,
"recurrence_lag_s": 93.855,
"interval_3gram_repetition": 0.3092,
"interval_4gram_repetition": 0.2053
},
"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_bass",
"bass",
"low_mid",
"mid",
"upper_mid",
"presence",
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"ultra"
],
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19.876,
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23.708,
68.522
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71.796,
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77.044,
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77.88,
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79.134,
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162.633,
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168.67,
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169.97,
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171.712,
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],
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173.012,
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]
]
},
{
"lane": "low_bass",
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45,
90
],
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0.488,
24.869
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36.641,
46.115
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57.957,
67.384
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80.48,
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81.223,
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83.87,
84.939
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86.912,
95.318
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95.945,
97.013
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98.963,
99.637
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99.73,
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130.519,
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151.835,
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174.335,
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175.473,
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177.772,
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],
[
180.791,
189.01
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189.823,
190.891
],
[
192.842,
202.014
],
[
224.421,
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]
]
},
{
"lane": "bass",
"band_hz": [
90,
180
],
"entry_s": 0.395,
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"active_fraction": 0.967,
"segments": [
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69.846
],
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70.124,
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76.185,
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],
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],
[
167.021,
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],
[
170.063,
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]
]
},
{
"lane": "low_mid",
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180,
355
],
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0.395,
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],
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70.101,
72.98
],
[
73.143,
163.817
],
[
163.933,
172.942
],
[
173.058,
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]
]
},
{
"lane": "mid",
"band_hz": [
355,
710
],
"entry_s": 0.418,
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"active_fraction": 0.9478,
"segments": [
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0.418,
67.872
],
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68.034,
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68.778,
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70.124,
70.914
],
[
71.076,
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],
[
71.819,
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[
73.166,
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],
[
74.095,
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],
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74.838,
75.813
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76.208,
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77.137,
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164.003,
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165.698,
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167.044,
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167.973,
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170.086,
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171.781,
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[
173.105,
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]
},
{
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71.076,
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164.003,
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171.781,
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},
{
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},
{
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5600
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},
{
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}
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3216.9,
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2754.2,
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2637.9,
2110.5,
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2904.9,
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2816.5,
2292.7,
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1972.6,
2207.6,
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1795.9,
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2734.9,
2639.0,
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2696.6,
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2111.2,
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2974.5,
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2614.4,
2542.0,
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2062.0,
2709.8,
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2757.8,
2248.8,
2120.6,
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2737.6,
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3977.0,
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2605.7,
2509.0,
3643.2,
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2820.1,
3162.4,
2799.6,
2635.5,
2585.5,
3192.3,
2580.0,
2300.7,
3416.4,
2254.6,
2893.3,
2949.7,
3369.5,
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3331.0,
2758.8,
2696.0,
2835.0,
2246.0,
2586.0,
1382.5,
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1864.0,
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2607.0,
1929.9,
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2421.9,
2722.1,
2659.2,
3029.1,
3432.2,
3188.9,
3255.9,
3105.2,
3314.0,
3245.6,
2623.1,
2722.6,
3070.1,
2702.3,
2631.1,
2516.1,
2937.1,
2934.6,
2685.2,
2421.4,
2912.7,
3014.5,
2390.2,
2257.5,
2345.4,
3114.0,
2424.3,
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2554.1,
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3024.5,
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2686.1,
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2622.4,
3287.3,
2172.7,
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2232.7,
2760.7,
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1904.6,
2847.4,
2476.1,
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2751.8,
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3140.6,
2631.0,
2545.3,
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2723.6,
3395.5,
4084.9,
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2682.1,
2750.4,
3858.9,
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2777.4,
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2666.6,
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"spectral_flatness_mean": 0.03101,
"signature_colour": "warm"
}
}
}