John
The organ plays like any arranger, you put the module on sync start, play a left hand chord and the accomp is the same as any arranger. If you have no LH voice on with the module, it plays just the full accomp with the organ voice. The same with RH. If I have my zone set to C1 to F#3, no lead voice is heard from the module, or you could change it to play both, or cut the volume of either, and play the other.