StaticdetectDetects if a chord progression drifts in pitch due to JI comma accumulation.
Returns the total drift in cents and the likely comma type. A drift near 0 means the progression is comma-free ("pumpless"). A drift near a known comma value identifies the pump type.
The progression (all chords should share the same JI tuning).
The JI tuning context.
OptionalcommaType?: "syntonic" | "pythagorean" | "septimal"The comma the drift matches (within 3 cents, 5 for septimal), if any.
Absolute drift after the progression, in cents; 0 for a progression without drift.
Comma pump detection: pitch drift of a just-intonation progression.