Donny - I apologize ... I just realized that my mic has never been plugged into my pa1000, as it's been dedicated for studio use. I haven't sung through it yet. I DID plug in a double unlatched pedal, and the damper worked fine, so I ASSumed that the other pedal would do my bidding in a similar manner. I just went in to check, and even the menu is different. I'm not sure if the mic needs to be plugged in to get the right choices, or not, but I don't even see an on/off selection for harmony in the list. I don't have time to fiddle with it right now, but sorry I steered you wrong. This is the first kb I ever had that wasn't a snap to hook up an on/off harmony pedal. Curious.