Hello Again Tim I have found a Guy who got this to work .They only thing is he is using a Tyros Keyboard which I can not aford to buy so maybe there are cheaper Yamaha keyboard that can get the Job Done .Here is his directions he sent to me and he is going to make a Video on it in a few days to share .

His Email to me ---> Hi Greg,

I spent a bit of time, and finally got it. The results were beyond my expectations. It works fantasticly.

1) You have to mute all of the voices on the BIAB, except 'soloist.
2) You have to uncheck "Use VST/DXi Synth"

On the Tyros, I had to ---
1) Set midi to Clock Ext.
2) Turn midi input to Chord Detect,
3 Check all channels on USB to receive input from BIAB

At That point it was working 'somewhat' but sounded horrible.so after hunting for an hour or two, I found that I had to check Vocalist box on the midi output section of Preferences on the BIAB
Then the sounds were beautful clearly indicating that the BIAB chords were controlling the syles and the song. I could even change styles live from the the Tyros, from the 1 to 4 level our change genre from R and B to Latin while the BIAB song is playing. I was plesently surprised at how good it sounded.

I will try to make a tutorial in the next few days for youtube. It is too difficultto describe in words alone. It's not too much more different then the tutorial I made a year ago using the Yanaha guitar.
The difference is checking off and muting the right things on BIAB. I hope the tutorial demonstrates the nice sounds I was getting live from the Tyros.
If you have no intention of buying a tyros, I am not sure of how much good my information will serve you, But I suspect there are lower costing keyboards from Yamaha that should work. All you have to do is make sure the keyboard has "chord Detect" and External Clock Features.


Regards,
Greg