Saxophone Colossus is the sixth studio album by American jazz saxophonist Sonny Rollins. Perhaps Rollins's best-known album, it is often considered his breakthrough record. It was recorded monophonically on June 22, 1956, with producer Bob Weinstock and engineer Rudy Van Gelder at the latter's studio in Hackensack, New Jersey. Rollins led a quartet on the album that included pianist Tommy Flanagan, bassist Doug Watkins, and drummer Max Roach. Saxophone Colossus was released by Prestige Records to critical success and helped establish Rollins as a prominent jazz artist. In 2016, Saxophone Colossus was selected for preservation in the National Recording Registry by the Library of Congress as being "culturally, historically, or artistically significant". Background There are five tracks on the album, three of which are credited to Rollins. "St. Thomas" is a calypso-inspired piece named after Saint Thomas in the Virgin Islands. The tune is traditional and had already been recorded by Randy Weston in 1955 under the title "Fire Down There". (In the booklet provided with the boxed set, The Complete Prestige Recordings, Rollins makes it clear that it was the record company that insisted on his taking credit.) In any case, the piece has since become a jazz standard, with this being its most famous recorded version. The final track, "Blue 7", is a blues piece, over eleven minutes long. Its main, rather disjunct melody was spontaneously composed. The performance is among Rollins's most acclaimed, and is the subject of an article by Gunther Schuller entitled "Sonny Rollins and the Challenge of Thematic Improvisation". Schuller praises Rollins on "Blue 7" for the use of motivic development exploring and developing melodic themes throughout his three solos, so that the piece is unified, rather than being composed of unrelated ideas. The original 22 June 1956 session was recorded by Rudy Van Gelder. A CD version, mastered by Steve Hoffman, was released in May 1995 by DCC Compact Classics; no additional performances were included. Another remastered version, this time by Van Gelder, was released on 21 March 2006. The album's title was devised by Prestige Records' in-house publicity director Robert "Bob" Altshuler. Release and reception Independent sources have differed in their reporting of the album's release date. According to The Mojo Collection, it was released in the autumn of 1956, and AllMusic also lists that year as the one of its release, while an August 1957 issue of Billboard magazine listed the