Lee, may be you could create a basic style using some SA or Mega voices in Yamaha and another basic style using drums and other sounds in Korg and play them together changing the style's variation on only one arranger but I guess it would be very complicated though. On the whole Korg Pa line you can send out midi Pc messages, including the lowest range Pa500, it's not that hard to implement it. For me it would be good to be able to control the Psr Intro/Var/fills/End from my NanoKontrol. I could use the 18 buttons in any of the four programable Sets (18x4=72 possibilities) and have it at the tip of my fingers.

Victor