Thanks Dreamer and Scottyee. I realized that using subsequent registrations you can turn accmp off, then on again, but the drums stay unless you specifically shut off those channels.

Using three registrations in a row you can shut off the drums and accmp in one, then have just the drums in the next, and all on in the third. I have concluded that for the song I'm working on, just having drums is good, then turning on the accmp in the last one works well.

It's easy to forget these workaround techniques.

Thanks again!

Juneau