A feature I was very excited to try was:
Practice Window->Transpose Songs->Each Chorus

For example, it is great training to transpose a 12 bar blues around the circle of fifths as it plays.

However it didn't work as I hoped.

After every chorus there is a lengthy interruption whilst BIAB re-renders the next 12 bars. And during the rendering process things sometimes went crazy and transposed some tracks more than others, or multiple times per chorus.

What I expected was the entire song including all transpositions to be rendered before starting playback. I tried rendering the song to video as a workaround but the key changes were ignored so I got 12 choruses in same key.

I'm using realstyles but I'm sure it's the same with midi-styles, perhaps lesser so.

Rather disappointing as it makes the feature quite useless, but perhaps, hopefully. I'm missing some secret setting! smile