Bill,

As you have stated, in order to pull this off, especially using the keyboard, you will need multiple rehersal sessions. Even then, if the other players are not well regimented with their timing, it will not work. If I were in your shoes I would seriously consider using the keyboard for all the main instruments, and possibly adding a quality rythm guitar player and someone that is good with a fiddle. The PSR-2000 is more than adequate for all the other tasks.

Good Luck,

Gary

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Travlin' Easy