Hello Jean,

A G chord with a flat ninth is not recognized by the KN6000 as such, however, I pulled my music for Chattanooga Choo-Choo to look at your problem. A solution that works (that is to say sounds OK harmonically) is to play Ab,B,D against the "D" note which is the word "me" in the lyrics. You won't have a "G" bass (or root note), but it doesn't really matter harmonically speaking since the G(b9) chord is just a transient chord leading into the "C" chord. I've played it and it works nicely I believe. Hope this helps you.

Sincerely, Chuck