What you are trying to do is easy in a DAW. In BiaB have the piano play for the whole measure. Drag and drop the tracks into a DAW. On that measure use volume automation to fade the piano, then at the start of the next measure sharply bring the volume back to normal.


The fitness trainer asked me, "What kind of a squat are you accustomed to doing?" I said, "Diddly."


64 bit Win 11 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware