If I DRAG and DROP the original audio files into Cubase and create the same tracks/song with those real band files, they play perfectly in tune in every key. BIAB interface/program has some slight tuning challenges with certain instruments in certain keys at certain speeds. At least the version I just got. Doesn't matter if I play it from the supplied BIAB drive or my computer.
The files played in Cubase are alive, they breathe, they sound like I would expect session players and quality recording to sound.
Thank you.