Rick was an incredibly talented muscian; as were all of the members of "The Band"; in the late 60's; early 70's. Collectively; they played pretty much every instrument ever invented.
They were: Levon Helm on drums and vocals; Garth Hudson on organ and keyboards; Robbie Robertson on guitar; Richard Manuel on keyboards and vocals; and Rick Danko on bass and vocals.
Rick had a haunting voice; an unusual cadence; and an incredible stage prescence.
http://www.youtube.com/watch?v=nJXc0NRCmRQ