How late the metronome's clicks reach the microphone, once the count-in
has shown it — they are being taken out of the audio, and the beat is
judged that much later, where the microphone hears it; null when there
is no click to look for, or none was heard (headphones)
Where the set tempo's clock stands now, in quarter notes (negative during a count-in); null without a set tempo
Index of the last event placed for good; provisional placements may run ahead of it, or behind it, until confirmed
The last event of the region has been matched
The last matched event
Index of the last matched event in the session's events; −1 before the first
finish() has been called
The event the performer is expected to play next
When the running tempo predicts the next event, on the stream clock
The event to point at: the one after the last confirmed placement, or one further when a provisional placement has moved on by a step. A provisional skip, jump or step back does not move it until confirmed, so it does not leap about on a wrong note.
Position of the last matched event, or the start of the region
Tempo the performer is holding, from the recent matched events — or the set tempo
Verdicts by score-note id; notes not yet reached have none
Everything a live session knows at one moment.