Hi Jim. Wonderful. I'm starting to see this now. Assuming that I can get the alto connected and communicating with my PC then I'll let the mic go through channel 1 via main mix straight into PC for recording. Then plug in the headphone into the mixer. Set the USB in to Control and the headphone also to control. Sounds like a plan. So in the headphones i will only hear the RB music and not the singer at the same time if i understand correctly. The next step is to be able to let the singer hear the music and vocal, but first things first. Im humbled that you take the time and interest to help me, Thank you. I'm off to hospital today got some surgery planned hopefully as soon as I'm able I'll get the Alto back onto the table and try again. Take care. Bryan.