We currently don't have the midifile to fit with this Multi Track
You can order it and within 5-7 days we should be able to deliver it.
This requires you to pay in advance and we will then hand it to one of our programmers. This covers part of the production cost for the midifile
The MIDI file will be in sync with the multiple WAV files. Load both into your DAW/audio sequencer - you can then use VST Instruments or external sound modules to add sounds to the Audio Multi Track.
Here's a quick tutorial with some ideas..