abcjs player mod by DaveRo

Adds buttons to https://editor.drawthedots.com/ to add playback options.
Suppress guitar chords, individual voices, and repeats. Each of these can be turned on or off.

It also works on http://michaeleskin.com/abc

Note:
This addon is MV3. You need to manually grant permission to access the website(s), either on initial installation or when loading each site. If you don't, the buttons will not display. You can also remove permission from either site if it stops working correctly - e.g. after an update to that site.

Android users: use this MV2 version until a bug in Firefox is fixed:
https://addons.mozilla.org/en-GB/android/addon/abcjs-player-mod-mv2/