Here is music from a game probably none has heard of here :)
"Command Adventures: Starship" has an excellent General MIDI soundtrack, the OPL3 version is totally ok but could have been made better IMHO it is not bad though.

Music by Hamilton Altstatt, nicknamed "The Thin Man"... i wonder if this name is because of "The Fat Man" (George Alistair Sanger) :)

I used an Kawai GMega midi module to record the GM soundtrack. The OPL3 music is record from a Sound Blaster 16 (CT2290) no emulators used.

General MIDI: Command Adventures: Starship (http://arcade.ym2149.com/osv/pc_gm/commandadventure_starship_(general_midi)_osv.zip) ~190mb

Sound Blaster 16/OPL3: Command Adventures: Starship (http://arcade.ym2149.com/osv/pc_fm/commandadventure_starship_(opl3)_osv.zip) ~190mb

Thanks! :)