Thank you! As for the song, well, I'm not really a music composer...or just good at making music in general. That was, in fact, one of the few times I've ever made music for a game. I was focusing more on the design and how it played rather than how the music sounded.
If you could provide a screenshot or maybe text version of the error (If there was one when it crashed) maybe I could see about fixing that. I do want to eventually do a patch version (1.1) in the future, just to iron out some bugs and fix the game up in places here or there.