Very excited to see this. It's very much a tool I would use, excited to give it a spin after work tonight. I also look forward to reading the code.

Other cool music tools I've seen implemented in rust:

* glicol - https://glicol.org/

* tune - https://github.com/Woyten/tune

A while back I wanted to make some tools to aid in composition and was using rust. Very partially baked, but a fun pet project to learn the language with. Generates just intonation pitch lattices based on my research of Ben Johnston's compositional approach. https://github.com/jcpst/johnston