but it's been many years since I used BB

I'm up and running and understand the interface again etc

Last time I sued this was over 10 years ago. At the time though I know I wrote a chord pattern, picked a style, told BB to have it go through 3 times and end.

The second time through it changed the beat a bit and played a solo. (Same tempo, just a bit more intensity on the drums etc) I think I somehow told it to use a guitar. (I still have the mp3 from that song I created)

Then the 3rd time it went back to the first manner of playing. But the "lead" it generate (piano) was not the same as the first.

Then a two bar end.

I can't see how to tell it to put a different instrument and feel in the repeat o the second chorus.