I been working on synthetic jamming musician patches for a bit now. A buddy of mine (DJ K9NE) tossed me a beat and I hooked a little synthony up to it.
All instruments were played by virtual musicians listening to the beat a each other. They all played presets on the Yoshimi synth. I edited about 40% of their notes out in post.
I'm considering hammering it into either a sonata form by adding composing a lead voice, to use as the first movement of a sonata. I havent envisioned what the character of the soloist would be though. CC welcome!