Found my answer at a dealer's suggestion. The accordion generates 3 individual notes via midi to make a chord. The keyboard must be setup for 3 fingered chords on the left hand to properly associate the signals. It was set for less than three, and it fouled up the reception of the three incoming signals. I changed it and it worked fine all night. Lucky for me i had this conversation with my dealer on the way to the job....next I may go back to a separate module w/rhythms for the accordion to minimize problems..