Yep. I actually already ported that tracker to atmega328 but gave up because I was so out of memory that there was nothing I could do. Shortly after this I began work on Pokitto. I hope to make this tracker thing ready on Pokitto.
But this is the kind of sound the synth library makes. The quality is not hi-fi, but the code is optimized to run with a game and not hog up all cycles.