No different then we did in the 70's and 80's..

Split your keyboard[helps to have 76 keys]..play bass on the left side of the split...play piano on the right side of split[I can add another split on the G1000, on the right hand side]..
You also add another tone for color[organ , guitar, brass etc] to the right hand side of the split,,,this is controlled by an ev5 expression pedal when you need the tone to be added to the mix..

The only thing that is looped[as the drum machine], are the drums.

Chas , why are you making me type all this? You already know what I am talking about..