music/pass2/measurements/v1_first_render/PASS2_FLORES_WATERFALL_CARD.json
{
"_doc": "The formula card, produced by the same path every corpus and exemplar card uses.",
"track_id": "PASS2_FLORES_WATERFALL",
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{
"position_s": 0.0,
"duration_s": 13.1,
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"shape": "ramp"
},
{
"position_s": 65.02,
"duration_s": 20.76,
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"shape": "step"
},
{
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}
],
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"rubato_depth_bpm": 132.512
},
"global_bpm": 66.26,
"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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},
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"metre": {
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"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."
},
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}
},
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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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"pitch_contour": "UUUDUUD-UDUD-UD",
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}
},
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"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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"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."
},
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},
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"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."
},
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}
}