Always cool to see people experimenting with procedural music generation.
I like that you focused on a specific category of music by choosing to only generate stings. That seems wise both in terms of scope for a jam & the amount of output that needs to be generated in order to be potentially useful.
The best outcomes I generated seemed to be with the piano & overlapping notes enabled.
(BTW I recently discovered this person who has some interesting videos about how they go about generating their procedural music which might be of interest: https://www.youtube.com/playlist?list=PLfZBSwHpypjAf0FQjLqJDiu87zuXDqKil.)
Thanks for sharing your work!