I checked but could not find a native BiaB solution, however I don't work in audio inside of BiaB so maybe others with more experience can help. But if there isn't any native BiaB you could detune each track -33 cents by using Melodyne as a plug-in. If you don't have Melodyne then DL a free auto-pitch plug-in like Grallion 2:
https://producer.zone/free-vst-plugins/graillon-2/

I hope this helps and good luck.

PS - you may be able to detune by using a precise pitch bend number via automation. Again I don't work with audio in BiaB so I am assuming pitch bend automation is available.


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64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware