Six-Trak XOR Profile Due to limitations of the Six-Trak's MIDI implementation, this profile must use program 99 as a temporary edit buffer. PROGRAM 99 WILL BE OVERWRITTEN ANY TIME YOU EDIT A SOUND, SO YOU SHOULD NOT STORE IMPORTANT SOUNDS THERE! This profile expects the Six-Trak to be in single-timbral mode. If you have XOR version 1.1 or higher, it will automatically set the Six-Trak up properly when it boots. If you're using version 1.0, you'll need to enable program changes and parameter reception, and set the Six-Trak to Omni Off/Poly mode, each time you power up.