I do covers and I have a lot of success and fun using BiaB. Like others I do play some of the parts myself. Sometimes I'll play bass, guitar, guitar MIDI controller, wind controller and a little simple keyboard while other times just either the guitar or wind controller.

Although I do use RTS and RDs most of my work consists of MIDI parts.

I also use Notes Norton fake book discs, http://nortonmusic.com/

They give you the exact fake book chords and a style in BiaB format. This saves me a lot of time as I do not have to type in the chords. You might want to check them out. Note that I do not represent Norton Music in any fashion, I am just a fan of these discs.

Good luck and have fun.

Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

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