music/exemplars/formula_cards/UNMATCHED__20_The_Place_1997.json
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"delta_bpm": 58.1,
"shape": "step"
},
{
"position_s": 157.29,
"duration_s": 8.34,
"delta_bpm": -20.4,
"shape": "step"
},
{
"position_s": 166.7,
"duration_s": 5.78,
"delta_bpm": 142.07,
"shape": "step"
}
],
"dispersion_bpm": 75.361,
"rubato_depth_bpm": 217.272
},
"global_bpm": 136.0,
"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": 136.0,
"tempo_bpm_median_local": 136.0,
"tempo_iqr_bpm": 23.65,
"tempo_stability": 0.3043,
"beat_interval_cv": 0.0276
},
"dominant_onset_period_s": 1.7183,
"dominant_onset_period_bpm": 34.92,
"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": 0.648,
"onset_rate_per_s": 10.765
}
},
"tonality": {
"key": "G#",
"mode": "minor",
"windowed_key_agreement": 0.093,
"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": 2.101,
"onset_bars": 0.81,
"pitch_contour": "-U--DUDU-D-U-DU",
"interval_vocabulary_semitones": [
0,
1
],
"intervals": [
0.0,
1.0,
0.0,
0.0,
-1.0,
1.0,
-1.0,
1.0,
0.0,
-1.0,
0.0,
1.0,
0.0,
-1.0,
1.0
],
"range_semitones": 1.0,
"distinctive_deviation": {
"largest_interval_semitones": 1.0,
"at_note_index": 2,
"is_licensed_leap": false
}
},
"motif_economy": {
"self_similarity_peak": 0.895,
"self_similarity_baseline": 0.7645,
"self_similarity_lift": 0.1305,
"recurrence_lag_s": 0.464,
"interval_3gram_repetition": 0.4977,
"interval_4gram_repetition": 0.3136
},
"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.",
"lane_roster_bands": [
"sub",
"low_bass",
"bass",
"low_mid",
"mid",
"upper_mid",
"presence",
"brilliance",
"air",
"ultra"
],
"entry_exit_map": [
{
"lane": "sub",
"band_hz": [
20,
45
],
"entry_s": 1.997,
"exit_s": 169.715,
"active_fraction": 0.6954,
"segments": [
[
1.997,
3.135
],
[
3.297,
3.994
],
[
4.156,
5.712
],
[
5.875,
6.571
],
[
6.734,
7.43
],
[
8.452,
12.121
],
[
12.307,
20.225
],
[
20.457,
27.098
],
[
27.33,
27.887
],
[
28.119,
33.971
],
[
34.18,
34.9
],
[
34.969,
36.618
],
[
36.688,
51.78
],
[
52.431,
53.522
],
[
53.94,
55.217
],
[
56.192,
56.959
],
[
57.377,
58.027
],
[
59.722,
60.372
],
[
61.44,
62.113
],
[
63.042,
63.785
],
[
64.226,
64.9
],
[
65.086,
66.2
],
[
70.24,
70.937
],
[
72.4,
76.092
],
[
76.254,
79.9
],
[
83.104,
83.661
],
[
84.056,
85.333
],
[
85.751,
86.262
],
[
89.977,
90.627
],
[
90.929,
92.369
],
[
92.532,
93.576
],
[
98.987,
100.496
],
[
105.837,
107.346
],
[
108.646,
111.386
],
[
112.71,
114.66
],
[
114.962,
116.448
],
[
116.518,
117.168
],
[
117.447,
118.073
],
[
118.213,
119.792
],
[
119.978,
121.301
],
[
121.347,
122.926
],
[
123.368,
124.018
],
[
124.296,
124.923
],
[
125.086,
126.735
],
[
126.781,
133.956
],
[
134.258,
141.642
],
[
147.911,
148.515
],
[
154.343,
154.993
],
[
156.688,
157.269
],
[
163.561,
164.119
],
[
168.948,
169.715
]
]
},
{
"lane": "low_bass",
"band_hz": [
45,
90
],
"entry_s": 1.997,
"exit_s": 170.736,
"active_fraction": 0.8807,
"segments": [
[
1.997,
5.666
],
[
5.805,
16.765
],
[
16.927,
51.757
],
[
52.431,
53.452
],
[
53.917,
55.171
],
[
56.076,
56.889
],
[
57.353,
58.979
],
[
59.49,
60.372
],
[
61.231,
62.438
],
[
62.949,
63.785
],
[
64.226,
108.46
],
[
108.623,
112.408
],
[
112.71,
141.619
],
[
147.911,
148.538
],
[
150.489,
151.928
],
[
152.625,
153.693
],
[
154.343,
156.015
],
[
156.502,
157.292
],
[
158.105,
159.451
],
[
159.916,
163.004
],
[
163.352,
164.165
],
[
164.978,
166.278
],
[
166.789,
167.602
],
[
168.507,
170.736
]
]
},
{
"lane": "bass",
"band_hz": [
90,
180
],
"entry_s": 1.811,
"exit_s": 170.713,
"active_fraction": 0.9413,
"segments": [
[
1.811,
16.161
],
[
16.254,
112.524
],
[
112.686,
141.526
],
[
147.888,
170.713
]
]
},
{
"lane": "low_mid",
"band_hz": [
180,
355
],
"entry_s": 0.279,
"exit_s": 170.713,
"active_fraction": 0.9681,
"segments": [
[
0.279,
142.803
],
[
147.818,
170.713
]
]
},
{
"lane": "mid",
"band_hz": [
355,
710
],
"entry_s": 1.625,
"exit_s": 170.713,
"active_fraction": 0.9498,
"segments": [
[
1.625,
16.138
],
[
16.881,
142.269
],
[
148.19,
170.713
]
]
},
{
"lane": "upper_mid",
"band_hz": [
710,
1400
],
"entry_s": 2.02,
"exit_s": 170.713,
"active_fraction": 0.9759,
"segments": [
[
2.02,
86.796
],
[
86.843,
144.289
],
[
144.544,
147.47
],
[
147.702,
170.713
]
]
},
{
"lane": "presence",
"band_hz": [
1400,
2800
],
"entry_s": 1.486,
"exit_s": 170.713,
"active_fraction": 0.9843,
"segments": [
[
1.486,
87.33
],
[
87.702,
170.713
]
]
},
{
"lane": "brilliance",
"band_hz": [
2800,
5600
],
"entry_s": 0.279,
"exit_s": 169.947,
"active_fraction": 0.9861,
"segments": [
[
0.279,
169.947
]
]
},
{
"lane": "air",
"band_hz": [
5600,
11200
],
"entry_s": 0.279,
"exit_s": 169.181,
"active_fraction": 0.9206,
"segments": [
[
0.279,
2.136
],
[
8.452,
67.175
],
[
72.144,
112.315
],
[
112.477,
169.181
]
]
}
],
"interlap_matrix": {
"sub|low_bass": 0.7825,
"sub|bass": 0.7284,
"sub|low_mid": 0.7145,
"sub|mid": 0.7178,
"sub|upper_mid": 0.7104,
"sub|presence": 0.7065,
"sub|brilliance": 0.7045,
"sub|air": 0.6637,
"low_bass|bass": 0.9216,
"low_bass|low_mid": 0.9053,
"low_bass|mid": 0.9105,
"low_bass|upper_mid": 0.8999,
"low_bass|presence": 0.8938,
"low_bass|brilliance": 0.889,
"low_bass|air": 0.8244,
"bass|low_mid": 0.9723,
"bass|mid": 0.9829,
"bass|upper_mid": 0.9618,
"bass|presence": 0.9556,
"bass|brilliance": 0.9506,
"bass|air": 0.8842,
"low_mid|mid": 0.9761,
"low_mid|upper_mid": 0.9713,
"low_mid|presence": 0.9758,
"low_mid|brilliance": 0.9777,
"low_mid|air": 0.9113,
"mid|upper_mid": 0.9659,
"mid|presence": 0.9634,
"mid|brilliance": 0.9591,
"mid|air": 0.8928,
"upper_mid|presence": 0.9907,
"upper_mid|brilliance": 0.9856,
"upper_mid|air": 0.9192,
"presence|brilliance": 0.994,
"presence|air": 0.9277,
"brilliance|air": 0.9335
},
"simultaneity_curve": {
"times_s": [
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0.186,
0.372,
0.557,
0.743,
0.929,
1.115,
1.3,
1.486,
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"spectral_flatness_mean": 0.06453,
"signature_colour": "bright"
}
}
}