In my opinion, this is the coolest sounding song I've ever composed. I don't know how horrible your sound card's midi sounds, but mine sounds reasonably ok. You can hear my recorded version here:

http://cctg.us/~alex/music/dark_sky.mp3

I would include the .NOT file but it exceeded the file size limitation by 32k. 500k is way too small for a maximum uploadable file size.

Feedback is requested.