a Q in forum made me do some experiments with B&B and audio-loops over 1-2 bars (typical commercial percussion loops, f.i)
They are actual quite difficult to get to play right and loop right
Only way i can get this somewhat working, is to use very long notes, but then the 'only-play-from-note-start' cravat kicks in
Could the green no-length-notes in BB have a logic, where they always played exactly for the duration of the setting in AFP, then perfect looping could be easy for the user