Can someone explain exactly what RC does? And what does it have to do with Biab?

I'm getting the impression this is something I might like but I also checked out a few of the vids and they told me nothing. I'm a musician and I need a musical example. Something like here is a song I did in Biab (put it on Soundcloud or wherever) and here's what I did with it in RC (also put it up somewhere).

Finally, here's how I did it.

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.