Then replace them in your main game directory. Load up "setup.exe" and configure midi. You can try Microsoft's SOUND SYSTEM as well as others and it might work. When you click on "TEST MUSIC" under the "SELECT MIDI MUSIC CARD" it will no longer produce an error. The sound may or may not be played in the setup program, but it should work in the game.
Thanks go out to Mok from Vogons who made this possible:
Funny Stone Age Biker Race, mediocre graphic - Supported (2016-03-23 21:17)
The midi and sound configuration is a little bit difficult, maybe this helps. Config MIDI first.
MIDI: MICROSOFT SOUND SYSTEM
MIDI-PORT = 388
MIDI-IRQ = 5