Mally, while I don't have a kn7k, I do know how these things work on a kn6k and they are probably the same. Your volume levels are independent of each other for the left hand and the right hand, until you save (set) an instrument setting in panel memory. Depending on whether you are in normal or expand mode will have an effect also, but the volume level of the rhythm (left hand) may have been different for one panel memory than it was for the second, or third, or forth. For a soft sounding instrument one would consider a softer sound in the background, than for a trumpet, for instance, where you would want a somewhat louder rhythm background. When you change the volume of a background instrument, it will stay the same for all four variations, but when you switch to another panel memory, the original volume settings will reappear. These would have to be reset and saved using the set button, then on to all the other panel memories while using the same procedure. Time consuming perhaps, but necessary. I generally use normal mode for this operation, or while I set up a rhythm pattern, but when I get ready to record, I sometimes switch to expand mode for use with a foot switch, and let the switch do all the work. In any case, the keyboard only reads the settings it has, and responds the way it was programmed to do. I would advise getting the manual out and redoing each step with doublechecks, and you will probably find you forgot one small important detail. Good luck.
[This message has been edited by Bud Whipple (edited 03-02-2003).]