Awesome work, I really love ChucK and participated in the mailing list at some point to work out how to embed ChucK into another app. Conclusion: it wasn't easy as the code has a lot of global static state but I had ChucK as the audio solution for a game I never finished.
Nice! If you ever are working on something like that in the future, I am working on libchuck[1] which should make embedding easier, in spite of pervasive global state. Currently iOS/Mac only but plans are in the works to make it cross platform.