Is it possible to use the on-board rhythms with Local "off"? I'm using iMidi Patchbay to split my Px-350. It allows more control. I'd like to use the on board rhythms at the same time. The beat lights up but I can't hear it. Is there a midi setting or particular channel? I've tried channel 10 in iMidi Patchbay but no luck. Any ideas? Thank you in advance.