Rockbandguy, try this:
1-open special - open MIDI file
2-play a section of the song
3-go to Audio and uncheck unrender song from audio track
4-click regenerate and you should have both the original MIDI file playing as well as the BiaB backing track.
5- you can change the BiaB style to fit your needs.

This worked here. Note that I have the latest version of BiaB.

{edit} - you can even change the tempo with no problem.

Last edited by MarioD; 08/04/24 08:35 AM.
Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware