I am trying to add a symbols for tremolo to the notes in a chord-sequencer.
If I understand it properly, I have to use class add-line and function add extras.
The first input of the class add-line should be an object.
In what format is this object? Can I use fonts and/or graphical objects (and if yes, then in what format)?
Also, does the chords inherit the added extra symbols when passed to other chord-seq or voice?
Do the extras export to notation programs?
Perhaps these questions seems ridiculous, but I am trying to use extra-objects for the first time and I can’t find any examples or instructions. (The explanations in Function reference are partial and insufficient.)