His best thing to do is as Bob said save the tunes as midi then import into Biab . I take it these are solo fiddle parts so they will end up on the "melody" track. The reason to do this is now he/she will have the notation.Then you can mute the melody track and use you're fiddle to play in real time while using the notation.
On a side note BIAB is going to try an analyse the part and create chords on the chord sheet. With a solo part this will probably come out weird so you'll have to fix the chords. I don't remember if you can turn chord analasis off in BIAB like in Real Band.


John
ESI Gigaport HD+
Lenovo Turion II /4 Gig Ram/ Win7x64 be
15.6" Monitor
"The only Band is a Real Band"
www.wintertexaninfo.com/BANDS/JohnnyD.php