Del Sasser is a hard bop composition written by bassist Sam Jones. The tune was first recorded by the Cannonball Adderley Quintet in 1960, a group in which Jones served as bassist during one of the ensemble's most celebrated periods. The composition is set in F major and features a moderately complex harmonic language characteristic of the hard bop era, with chord progressions built on ii-V sequences, diatonic seventh chords, altered dominants, and chromatic passing harmonies. Its melodic and harmonic design provides a strong framework for improvisation while remaining accessible as a head arrangement. Jones, who was active from the 1950s until his death in 1981, contributed several compositions to the jazz repertoire during his tenure with Adderley and as a sideman and leader on numerous sessions. The meaning behind the title "Del Sasser" remains unexplained in available documentation, a point of curiosity among musicians who have encountered the tune. While not among the most frequently called jazz standards, Del Sasser maintains a steady presence in jazz education and performance contexts, appearing in play-along materials and serving as repertoire for both students and professionals. It has been recorded by various artists across the decades, reflecting its enduring utility as a vehicle for jazz improvisation within the hard bop tradition.