Bernie - Read this a couple of times trying to understand better. Do I have this, right? You are playing using a keyboard controller via USB and controlling both left and right-hand parts with no issue. Then at some point, you want to change to a different controller. What happens when you do that? Maybe a better question is, what doesn't happen when you do that? I think you want to use both controllers at the same time? If that is correct, what do you want the keyboard controller to do and what do you want the wind controller to do?