So what is the advantage/benefit of the RB over BIAB?
There are many, but the most 'appreciated' ones are:
- 48 individual tracks.
- Tempo changes can be in fractions, not whole values (e.g. RB allows 125.6, where BiaB will only allow you to select 125 or 126).
- You can generate only selected section of a track (BiaB can now sort of do this but it's a work in progress).
- You can easily put MIDI or Audio on any available track (less limitations to only the Soloist or Melodist tracks).
- More than 255 bars (BiaB is limited to only 255 bars of music).
- More DAW-like operation.
No doubt others will chime in with their favorites.