I play accordion with my friend who plays bass.... We use BIAB to make backing tracks which I convert to MP3s for use when playing live. I have them on a USB stick (which my electronic accordion can read and play)...I just take the generated BIAB tracks into a DAW and mute the bass part and tweak the rest of the tracks....sometimes we throw in another instrument to do a lead part or two as well. The realtracks sound much better than any midi backing tracks so it works great.
BTW...we still have the tracks in the DAW, so we can record our own on top of them and may eventually make a CD of our tunes too....