0–1; the fraction of MIDI note-ons that found an audio attack
OptionalmatchedNumber of note-ons that found an audio attack
Add this to a MIDI event time to get the time of its sound in the audio
OptionalspreadMedian absolute deviation of the matched differences, in milliseconds
OptionaltotalNumber of note-ons in the take
The measured offset between the MIDI and audio timelines of a take.