I realize that we can create a slur that crosses two (or more) voices by selecting the first and last note in a passage and then add the slur. I’m wondering how this is going to work in playback when the voices are split on separate midi channels?
That’s a good question. At the moment, only the notes in the voice where the slur starts will be played back as slurred. This is something we need to do further work on.
One possible solution here is to duplicate the note(s) on the channel that begins the slur in play mode, and silence the note(s) being duplicated. You’ll need to do stuff like this when you implement a2, divisi, unison and other directives.