Haha, to "Definitely an OCR soundtrack project for a game I'm working on"
And how far are you in the actual level design?
Oh and I also just thought about this, what are you doing for sound effects? Or do you have this covered? Are there gonna be some small scale cinematics? Voice acting? I'm just thinking about some stuff that Iji had because Iji was awesome, it had branching story paths, cinematics, and a ton of bonus features. You should check it out for ideas sometime if you haven't already. Of course, Iji was also 4 years in development...
Iji