You'll make someone happy and make our variety of songs even larger. Or go through your game library. I do have a request of my own to make here, though. Please don't do anything that's been done many times before. For instance, we really don't need a fifteenth copy of any one of the hundred songs from the latest Final Fantasy.
Tracking is the fine art of laying out phat beatz, rhythmz, and soundz.
It's pretty much the same idea as sequencing, expect modules are being made. Unlike in MIDI, there are no set instruments, which means the sounds are only limited by your sampling capability and tracker's sample limitations. You can use actual voice samples, if you wanted. You also don't have to lay down every note. You can pre-make a drum loop, for example, turn the whole thing into a single sample, then put it into your song with a single note.