"After Hours" from the 1957 album Sonny Side Up presents a slow blues in G major at 67 BPM, offering a stark contrast to the album's high-velocity tenor battles. Composed by Avery Parrish, the tune's 12-bar blues form provides a relaxed framework for introspective soloing from all three principals. Dizzy Gillespie opens with three muted trumpet choruses that demonstrate his profound understanding of the blues idiom, a dimension of his artistry sometimes overshadowed by his bebop fireworks. Sonny Rollins follows with three tenor saxophone choruses, his tone warm and his phrasing unhurried. Sonny Stitt closes the solo section with five expansive choruses, building gradually from a whisper to a shout. The slow tempo reveals aspects of each musician's personality that fast tempos can obscure: Gillespie's lyricism, Rollins's rhythmic wit, and Stitt's commanding tone. This track balances the high-energy performances elsewhere on Sonny Side Up, proving that these three masters were equally eloquent at any tempo. The album, produced by Norman Granz for Verve Records, ranks among the most important blowing sessions of the 1950s. The blues format democratizes the proceedings, stripping away the rhythmic barriers that might favor one style over another and allowing each player to speak with authentic emotional directness.