While BiaB has notation embedded it’s primary purpose is auto accompaniment it builds song bed tracks. The notation features won’t be as deep or rich as a dedicated notation software program. I never hurts to have one of those as well for stuff like this. There are a few one I believe has a free version do a little digging and see what works best for you. As mentioned above then you can import into BiaB for adding cool tracks.

HP Win 11 12 gig ram, Mac mini with 16 gig of ram, BiaB 2025, Realband, Reaper 7, Harrison Mixbus 9 32c , Melodyne 5 editor, Presonus Audiobox 1818VSL, Presonus control app.