Spent a few minutes playing around with this tool. :)
Procedural music is a topic that's of particular interest to me so nice to see people submitting tools like this to the jam.
This seems like a solid feature base to build on & potentially extend in terms of patterns/structure etc in future.
I think the choices you made around limiting the initial "knobs" for adjustment to "Mood", "BPM" & "Randomize All" were good in terms of making the tool relatively accessible initially to people without too much music knowledge. While also providing room for others to experiment at a lower level.
What process are you using to generating the music notes/chords used?
Thanks for sharing your project.