music/exemplars/formula_cards/UNMATCHED__Portal2-05-Excursion_Funnel.json
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"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.",
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{
"position_s": 0.35,
"duration_s": 3.67,
"delta_bpm": 70.32,
"shape": "step"
},
{
"position_s": 7.52,
"duration_s": 1.93,
"delta_bpm": -13.23,
"shape": "step"
},
{
"position_s": 11.19,
"duration_s": 4.5,
"delta_bpm": -33.35,
"shape": "step"
},
{
"position_s": 20.71,
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"shape": "step"
},
{
"position_s": 25.38,
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},
{
"position_s": 31.97,
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},
{
"position_s": 40.63,
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},
{
"position_s": 47.0,
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},
{
"position_s": 66.92,
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},
{
"position_s": 86.4,
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},
{
"position_s": 89.37,
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},
{
"position_s": 94.99,
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},
{
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"shape": "step"
},
{
"position_s": 105.67,
"duration_s": 3.67,
"delta_bpm": 48.06,
"shape": "step"
},
{
"position_s": 109.57,
"duration_s": 1.7,
"delta_bpm": -32.32,
"shape": "step"
},
{
"position_s": 111.55,
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"shape": "step"
},
{
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},
{
"position_s": 120.09,
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},
{
"position_s": 123.6,
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},
{
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},
{
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},
{
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},
{
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},
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},
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},
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},
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},
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},
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},
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},
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},
{
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},
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},
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},
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},
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},
{
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},
{
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},
{
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}
],
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"rubato_depth_bpm": 140.945
},
"global_bpm": 117.45,
"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": 117.45,
"tempo_bpm_median_local": 123.05,
"tempo_iqr_bpm": 18.55,
"tempo_stability": 0.3971,
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},
"dominant_onset_period_s": 0.2322,
"dominant_onset_period_bpm": 258.4,
"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": 0.666,
"onset_rate_per_s": 10.766
}
},
"tonality": {
"key": "G",
"mode": "major",
"windowed_key_agreement": 0.9265,
"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": 2.45,
"onset_bars": 1.88,
"pitch_contour": "UDUD--UDUDUDUD-",
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0,
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],
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12.0,
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0.0,
0.0,
12.0,
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12.0,
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12.0,
-12.0,
12.0,
-12.0,
0.0
],
"range_semitones": 12.0,
"distinctive_deviation": {
"largest_interval_semitones": 12.0,
"at_note_index": 1,
"is_licensed_leap": true
}
},
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},
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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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]
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},
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},
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]
},
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