Blue 7

Sonny Rollins wrote "Blue 7", the closing track of Saxophone Colossus, 11:17 on the Prestige LP and 11:18 by a forum post, recorded on June 22, 1956 at Van Gelder Studio. Allsolos describes a 12-bar blues in B-flat at 4/4 swing, with solos by Roach (about 137 beats per minute), Flanagan (133) and Rollins (134). MusicBrainz lists a work titled "Blue 7" with Rollins, Flanagan, Watkins and Roach, and a work "Blue Seven" with other artists' versions, among them Shirley Scott's 1961 organ-trio recording on Prestige.

Gunther Schuller's essay, Sonny Rollins and the Challenge of Thematic Improvisation (The Jazz Review, volume 1, number 1, 1958), analyzed the solo bar by bar, arguing that it hangs together thematically. Marcelo Bettoni wrote in Arteidolia in January 2026 that the solo builds on the theme's three-bar continuation, with brief phrases separated by silences of three to five beats; a new motif arrives just before Roach's drum solo and returns, and the second solo develops a sixteenth-note figure by diminution. A later Skidmore study, which we saw only in a search summary, argues the solo was fully improvised and the motive a habitual formula, and other critics say the recurrences appear in many of his solos. A forum post quotes Martin Williams's 1964 liner notes calling it one of the few truly successful extended performances on record, and has Rollins reacting to Schuller; we could not verify either account.

We found no statement from Rollins on the tune, no chart history or video, and no setlist.fm count.