I too enjoy taking a good LH walk (on the keyboard). Unfortunately, on Yamaha arrangers, it's not possible to play & trigger auto accomp chords in the right hand, freeing up the left hand to play bass lines. This is a very popular piano player comping style. and sorely missed on Yamaha arrangers. The only time I'm able to do the left hand bass line thing (on my Tyros) is with auto accompaniment turned off, or with auto accompaniment drums only. I hope Yamaha will seriously consider adding a right hand chord (triggering) option on their next arranger (Tyros 2?), as I believe Korg & other brand arrangers already include this feature.

Scott