Re-MP3 Files

You can use the Audio Chord Wizard in Biab for MP3 files. It will generate the chords from the MP3 (You need to adjust the bars in there though with the ACW settings etc...) and place the music on Biab's Audio Track. You will not be able to record to the Audio Track unless you delete the music backing on the MP3.

You can record to the Audio Track along with a Biab style, just like an MGX file though. That way, you can create your own Biab backing track

Trax