+1 for preview of some kind.
I am thinking of two types of previews it can have. Either one similar to "in dialog"
of Multiriff, or even better, a non-modal MicroChord dialog that could simply use standard BIAB transport controls, without the need of closing out of it.

+1 for "pre-written chord/motif runs/riffs" But probably just as examples. I think it will be tricky to generate something useful that is premade that will "makes sense" in the context of user created (not demo) arrangement as a whole. But interesting idea.

+1 for Matt's "I would love to have some new PG Music demo songs to study that use microchords."


P.S. It takes quite a bit of patience to get it how you want MChords to sound, so all are good ideas.