Hi PatMarr, yes you are correct. I did play the guitar and the sax on a wind controller here. Actually I trying to learn a number of instruments and BiaB is a tremendous help. My process for this one is as follows:

1 - I figured out the chord progression and tempo on my guitar.
2- I inputed the chord progression into BiaB and selected a style (JAZ_60)
3- I brought the Biab midi tracks into Sonar, deleted the midi guitar and added mine
4 – Using the BiaB generated parts as guides I then replaced the bass and keyboard parts using my P-Bass and midi controller keyboard
5 – I replaced the BiaB midi drums with some Groove Monkey midi drum parts
6 – I added the sax part

Note that I did some slight adjustments to the Groove Monkey drum parts and that I had to edit the midi keyboard and sax parts. I am NOT a real keyboard and/or wind controller by any stretch of the imagination. But I’m having fun trying and learning.

Thanx for the kind words.

I'm no longer allowed to go caroling at the psych hospital.
I guess Do You Hear What I Hear was a bad song choice!

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