guitar

As discussed here it is currently not possible outside of alphaTab. alphaTab keeps properly track of the active beats for highlighting purposes but an integrator cannot obtain this list for any custom purposes.

But the playedBeatChanged is only called with the beat which is used for cursor placement.

The idea would be to add a `act

Description
Allow custom fret labels (attached to instrument, player, or tuning) to allow other instruments that don't just use numbered frets/positions.

For example, shamisen players have the following:
0 -> 0
1 -> 1
2 -> 2
3 -> 3
4 -> #
5 -> 4
6 -> 5
7 -> 6
8 -> 7
9 -> 8
10 -> 9
11 -> 1b
12 -> 10
13 -> 11
14 -> 12
15 -> 13
16 -> 1#
17 -> 14
18 -> 15
19 -> 16
20 -> 1

See tooltip API https://material.angular.io/components/tooltip/examples