Beats in a bar of the score
Forget the latest take, so the card shows live feedback again
Wire to the score player's onPlaybackEnded, so a playback-paced take ends with the track
The most recent finished take, graded
The live session, for a live readout
The metronome, for a beat display
The score viewer's styles: live verdicts while a take runs, the final grade's markings once it is in
Where the score viewer's position line belongs, or null while the score's own playback leads
The recorder behind the session, for a record button
What the take is doing: counting in, anchoring, ending; null when there is nothing to say
Return value of
usePracticeSession.