Thank you again for your help, OM.

To my great amusement (and slight embarrassment) I might not have a problem at all. When I record stereo, Input 1 is the left channel and Input 2 is the right channel.

When I record mono, RB is smarter than me and creates a left channel and a right channel. In fact, it even labels them "Audio - Left Channel" and "Audio - Right Channel". Real band appears to be doing what I want, but because it's (slightly) automated, I didn't see it. Wild.

The final mystery is the guitar tuner--it only reads from Input 1--which is a bit odd.

Thanks again, I'll come back if I'm further baffled.

John