1950s at this time included Lester Young, Ben Webster, Charlie Parker, Dizzy Gillespie, Miles Davis, John Coltrane, Thelonious Monk, Charles Mingus, Art Tatum, Bill Evans, Ahmad Jamal, Oscar Peterson, Gil Evans, Jerry Mulligan, Cannonball Adderley, Stan Getz, Chet Baker, Dave Brubeck, Art Blakey, Max Roach, the Miles Davis Quintet, the Modern Jazz Quartet, Ella Fitzgerald, Ray Charles, Sarah Vaughan, Dinah Washington, Nina Simone, and Billie Holiday. The American folk music revival became a phenomenon in the United States in the 1950s to mid-1960s with the initial success of The Weavers who popularized the genre. Their sound, and their broad repertoire of
The Genius of Charlie Parker Vol. 2" [Savoy MG 12009] and "The Charlie Parker Story" [Savoy MG 12079]) completing the reissue of the previously released master takes, and the original issue of most of the unreleased takes from these seven sessions. Parker's entire Savoy ouvre was finally issued on "Charlie Parker: The Complete Savoy Studio Sessions" in 1978. The master take of "Koko", included here, is controversial in that it is unclear who, precisely, plays trumpet and\or piano on the track. The liner notes credit Miles Davis with trumpet for the session, but also credit Dizzy Gillespie with both trumpet and piano. Several sources claim