Cranders,
You can record a WAV file from a MIDI right on the Genos. Set up the MIDI to play on Player A, then Set player B to record. Do a dry run thru to adjust recording levels then rewind the MIDI, hit Record on Player B then hit Play on Player A.
By doing it this way you will lose the ability to edit on your computer. The better way to do it is to hook your keyboard up to your PC that way the MIDI will sound the way it is supposed to because it will play thru the Genos. Playing MIDI's on a PC is undesirable unless you have a really expensive sound card in the PC made to play MIDI, but it still won't sound as good as the Genos.
Good Luck,
Rick D.