errrrrr dude...
I have no idea how you decided to render this, but it sounded like you were just holding a microphone to your speakers. You need to rerender this because there's always a mean hissing sound in the background, and the music itself hurts my ears due to capping and such. Check it out for yourself. Other than that, it sounded like it'd be a good song. Likewise for Opperoptics.
Sincerely,
A Random NG User whom you neither know nor care about.