Riverside Records was created by Bill Grauer and Orrin Keepnews in New York in 1953, with Keepnews in charge of the creative side and Grauer dealing with business and administration. The label began as a blues and jazz reissue label, sourcing their output with material licensed from other labels. Young artists such as the Floridian brothers Cannonball and Nat Adderley, saxophonist Sonny Rollins, guitarists Charlie Byrd and Wes Montgomery, saxophonists Johnny Griffin and Jimmy Heath and young pianist Bill Evans formed the core of their catalog. Pianist Thelonious Monk had previously recorded for Blue Note in the late 40s / early 50s, but he was to achieve his greatest successes in the 1950s on Riverside. The label was bought by Milestone in 1966 and sold to Fantasy Records in 1972. In 2004, Fantasy Records and all of its holdings were bought by the Concord Music Group in Los Angeles.