Very cool game! For some reason i found the Synth section really tough to get past, but im not one to give up easily. So in the end i overcame it.
Really creative idea and i like the way the music builds up as you go through the different stages.
Sometimes it felt a bit frustrating that you had to wait a for the bar to come around again when you messed up in the beginning.
That's just a little nitpick though. Overall i am really impressed with what you two created in such a short time and if you plan on ever doing something similar like this again I'd be happy to participate as well! (If you'll have me of course, if not i wouldn't be offended either)
Best regards
Neelis