I use a mixer. Set the thru on one to the Ketron SD2, and use the actual keyboard (Roland Rogers) on another slider on the mixer. If I want to change I just pull or push a slider so I get two organ sounds with one keyboard.

If you embed at the point you want to switch using f5 you can just change sounds at a certain bar.

The only thing I can't do is play 2 manuals at once getting both sounds, although if I want on the keyboard I can split the keyboard wherever I want and play one organ sound for bass and another for the higher register.

John Conley
Musica est vita