I bet those Garibaldi loops are pretty hot. If you find that style, I definitely would like to have it. I know it's certainly possible to create a song specific Biab style, Notes Norton does it all the time. The only problem with Biab for something like that is the one midi output port. Very restrictive because all the instruments have to be from one synth. A DAW using a good midi file is much better because you can use multiple synths plus those loops. The cool thing about Real Band is you can easily combine both a Biab style and midi/audio tracks.
As to where you can share styles, there's a Yahoo Biab group plus you can google a lot of styles too. There also Alannah's site, she's a member here and has literally thousands of Biab and midi files. If you're into TOP type stuff though, she may have a few but probably not too many.

Bob

Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.