I never said it wouldn't help converting to yamaha, I talked of converting from yamaha. There appears to be a difference between 2000 and cvp209 (maybe the session or otp styles?) and previous yamaha format. I converted the entire 9000 and 9000pro archives with little problem, also previous yamaha 8000, 7000 etc etc. If this program can be used to remove C maj 7 and leave C major (the reverse of what you describe) it could be useful converting from yamaha too.