Hi Audrey. To be honest, I've never tried that feature. Never even thought of it, so I can't say for sure if it will work with off-key chords, or not. However, what I didn't mention is the other little parts that don't always convert properly, such as a telephone ringing, a whistle blowing on the Latin conversions, doorbells, or odd raps and knocks that don't make sense. It's these tweaks that are necessary and time consuming when you're converting styles from other brands, and it's not always Yamaha that's to blame. Technics keyboards will select the closest sound possible when reading the data files, and sometimes things get pretty weird even when it's Technics to Technics files.