I guess it's time for my first audio submission, so I figured I'd make an excellent first impression. I made this over a couple weeks in FLStudio 8.
This music is designed to be set to the climactic battle in a role-playing game, possibly against some god-like eldritch abomination thingy you always see at the end of these sorts of games. The audio is exactly 5 minutes long, and (hopefully) the ticking that starts at 33 seconds in is perfectly in-sync with the timer.
It starts out with nothing but pipe organ and ominous chanting, picks up speed at 33 seconds (where the aforementioned ticking comes in), and the main loop plays about 1.6 times before the finale at 4:30, when the choir practically starts shrieking in fear because the world's about to end. And at 5:00, it does.
Enjoy. (P.S. I recommend viewing with the SpinArt visualization.)