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.


I'm no longer allowed to go caroling at the psych hospital.
I guess Do You Hear What I Hear was a bad song choice!

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware