jpapas,
That's exactly how I use my arranger. I use a Tyros 1 on top for acoustic sounds, layers, quick patch changes, etc. My bottom keyboard is either a Korg Triton Extreme 76 or a Motif ES 88. When I'm really feeling funky I midi the Motif or Korg to the Tyros and dedicate the Right 3 voice to control via midi.
At home, I use the Tyros for rehearsals, solo practice, etc.
_________________________
Al
Pa4x - LD Systems Maui 28 - Mackie Thumps