What you described is an arranger. While that does exit in BiaB You already have the band. If you just want to play along there is a Thru channel in the mixer. From the manual: The Thru track for play-along on an outboard MIDI device or with the Band-in-a-Box Wizard feature. The advantage of this is that if you make a mistake the rest of the band plays on. Nothing is missing but a few notes.

Last edited by Rob Helms; 5 hours ago.

HP Win 11 12 gig ram, Mac mini Sonoma with 16 gig of ram, BiaB/RB 2026, Reaper 7, Harrison Mixbus 11 , Zoom Livetrack L-8