I'd suggest to make a separate view and define point positions by a fraction value. Like 3/2 - violin 20% -> 4/2 - violin 60%
The view should be updated by chord focus change and vice-versa - the chord at the position should be highlighted where you hover (or just click for a start)
Even though i wrote "curves" in the subj, for a start just straight lines between dots will be ok enough.
I'd suggest to make a separate view and define point positions by a fraction value. Like 3/2 - violin 20% -> 4/2 - violin 60%
The view should be updated by chord focus change and vice-versa - the chord at the position should be highlighted where you hover (or just click for a start)
Even though i wrote "curves" in the subj, for a start just straight lines between dots will be ok enough.