I don't know how many people here are familiar with old school hip hop, but The Roots are one of the greatest of all time. For those that don't know, they're a hip hop band from Philly. And when I say band I really mean a band because they have everything including a drummer (Questlove is a beast), a bassist, and guitarist. If you've ever watched Late Night with Jimmy Fallon, they're the house band.
I really am considering contacting them about RBN, because many of their songs have a majority of the required parts (some of their newer songs have piano as well), but I just wanted to get a consensus opinion from the community.