Noel96, your file works perfectly. When I do it myself as a repeating 9 bar chorus with a 2-beat measure in bar 9, the problem persists regardless of whether I set bar 1 to 4 beats or not. However, if I do the tune as a continuous 18 bar chorus, setting bar 9 to 2 beats and bar 10 back to 4 beats, everything works perfectly. Apparently, the program gets confused when the 2 beat bar is the last measure of a chorus, but it doesn't mind if an internal bar is 2 beats. This is going to be tricky to program, since bluegrass routinely employs 2 beat measures at the end of a verse.