Another non-XBLA'ified game (TNT: Evilution) but the concept is the same.

Third party Midi to Mp3 converter. "Solmire.com"
To sound exactly like the ones used on XBox Live Arcade version of Doom/Doom2, the settings used is
- 90% tempo
- EAWPats soundfont
- 192 kbps

If you don't think that XBLA and EAWPats sound alike then go yiff yourself :D
dem GUS patches