AJ,
You must definitely have Manuel Dorantes participating in the demo. He is the Arranger Wizard of Arizona and his playing skills are on par with Michel Voncken and Peter Baartman.
Manuel’s keyboard of choice was the Ketron SD-1 before he switched over to the Tyros2. He knows the interfaces of these keyboards inside out. There is nothing like having a top-flight Arranger demonstrated live by a trained professional.
Tapas