Why would buying a keyboard that *is* an interface, not be appropriate as a stage piano? It seems to me, that this is becoming more and more the way to go... and yes, I've considered an interface (actually in our case) between the cpu and the board... Though I appreciate the clarification about the interface outboard of the cpu outs. I figured that was the case. We want to stay away from a computer rig on stage, due to small stage and no booth near the stage.. Ours is the traditional, in the back of the house, booth. smirk This keyboard does not have a midi out. So usb latency out is an issue.. as it's a live performance.