XMI (Extended MIDI)

XMI (Extended MIDI) is an IFF-based music format.

Sample files

 * http://cd.textfiles.com/cdreview/cdreview66/FLY/MUSIC/
 * https://telparia.com/fileFormatSamples/music/xmi/

Links

 * XMI article from the Videogame Music Preservation Foundation Wiki