The Steep Canyon Rangers have been making music for the last two decades and have been recognized as one of the best bluegrass groups around. They have shared the stage with the likes of Steve Martin, Edie Brickell, and just this summer, a collaboration with the Asheville symphony and the R&B group Boyz II Men. Here is Rangers’ rendition of the jazz classic “Blue Monk,” an instrumental by the famed pianist Thelonious Monk, first recorded in 1954.