Thanks David - I do have a midi file generated already, which was an export from my sheet music software, where I had already manually entered the bass line. I might also try step-entering it again into BB just for the experience. If I understand, my options are:
1. Import the midi file into the melody or soloist track and mute the Bass track.
OR
2. Edit the actual bass track via step entry via the "Notes view".


WinXP Pro / BiaB 2010 / Fast Track Pro / Ketron SD2