Cascades is an original composition by Oliver Nelson, written in 1961 for his landmark album The Blues and the Abstract Truth, recorded in February of that year for Impulse! Records under producer Creed Taylor. The tune is a medium-up swing piece in a minor key that modifies the traditional blues form, using a 16-bar minor blues for the A section within a stretched framework that gives the composition a distinctive, extended architecture. Nelson scored it for a septet featuring Freddie Hubbard on trumpet, Eric Dolphy on alto saxophone, George Barrow on baritone saxophone, Bill Evans on piano, Paul Chambers on bass, and Roy Haynes on drums. The flowing, cascading melody suits its brisk swinging rhythm, while the blues-inflected harmony maintains an accessible feel for improvisation. Bill Evans contributes a particularly notable piano solo on the original recording. Within the album's program of six original compositions exploring various blues structures, Cascades stands as one of the more adventurous pieces, departing from standard song forms while retaining the album's cohesive blues identity. Though it has not achieved the widespread recognition of the album's signature track Stolen Moments, Cascades remains an important deep cut from one of the most acclaimed and enduring records in the jazz canon, with big band arrangements and transcriptions available for educational use.