Clifford Brown composed Sandu for the February 1955 Study in Brown session at Capitol Studios in New York City, one of several originals he contributed to the album alongside pieces by Richie Powell and Harold Land. The melody is a two-part horn arrangement with Harold Land harmonizing a minor third below Brown's trumpet lead, lending the head a composed warmth uncommon in blues vehicles. The bass line features a distinctive pedal on beats two and four during bars nine and ten of the melody, and bars eleven and twelve are left open as a solo break for the first improviser, a structural detail that gives each performance a moment of dramatic tension before the blowing begins. The head is customarily played twice at both the top and the close. Though it sits in the less frequently called key of E-flat for a blues, Sandu became one of the most recorded tunes in Brown's catalog, appearing on over fifty documented recordings. Brown's harmonic language here reflects the influence of Fats Navarro, threading bebop approach tones and grace notes through a deceptively simple blues framework. The tune entered the standard repertoire quickly after Brown's death in a 1956 automobile accident at age twenty-five and remains a staple at jam sessions, where its accessible form and rich changes invite extended improvisation. Later interpretations range widely, from Wes Montgomery's organ-jazz reading to Woody Shaw and Freddie Hubbard's trumpet duel on Double Take to Keith Jarrett's piano trio version on Whisper Not in 1999.