Grab a copy of my Jazz Samba Builder and try out the various combinations as you play along with João and Sonny.
There's very little information out there about Sonny Carr. Mostly just an obituary which says that he was a "renowned jazz drummer for twenty years" in New York, and died back in 2011. Apparently he was a technical writer by day. The usual internet suspects like Wikipedia, All Music, and All About Jazz didn't provide much help either. If you know anything about Sonny drop me a comment.