MIDI Files & Websites
Original MIDI Files
MIDI files composed by myself and friends for use in Doom projects
Tuned-up MIDI Files
Improvements of MIDI files found out in the wild
Community MIDI files
Songs composed by members of the Doom community, listed at doomwiki.org
DoomMidis.com
A new repository created by Chris Hansen (Work in progress)
Ultimate-Guitar
Thousands of GuitarPro and PowerTab files, easily converted to MIDI using
TuxGuitar
BitMIDI.com
Contains over 100,000 MIDI files
FreeMIDI.org
Contains over 25,000 MIDI files
MIDIWorld.com
Yet another large source of MIDI files
VGMusic.com
MIDI files based on music from various games
World of Game MIDs
Another large collection of video game MIDIs
Video Game Music Preservation Foundation
Very large database of game music, including MIDI files
Frank Zappa MIDI
Over 300 MIDI files based on music by Zappa!