My previous post is not joke,cos I am engry on Ketron,but that is diferent story.
I would like to helping you to anderstand haw Style edit works.
Like you realize Bass section dont work if you record only Major line.Its nececery to record all parts of track.That mean:Major,Minor and 7th parts.When you play with left hand you change parts of melody like Major,Minor or 7th and kayboard swich betwen that chords and use nececery parts.So if you dont record Minor part of style kayboard haw nothing to use.
That procedur is the same in all track of style.The same thing is in Live Guitar section.In Audya exsist audio files in waw format for Major,Minor and 7th parts for ich chord from E0 to G7.

Hope I helping you a little haw they works.
Regards