Dolphin Dance is a jazz composition by Herbie Hancock, written in 1964 and first recorded for his landmark 1965 Blue Note album Maiden Voyage. The piece is celebrated for its graceful, flowing character, evoking the fluid movements of dolphins through a lyrical melody supported by sophisticated harmony that blends modal and tonal elements. Structured in an unconventional 34-bar ABCD form, the composition moves through multiple tonal centers without establishing a fixed key, never beginning and ending in the same tonality. This harmonic restlessness gives the tune an organic, searching quality that rewards both listeners and improvisers. The final four bars are particularly notable among musicians for their elusive chord changes, which have generated ongoing debate across various published lead sheets and fake books regarding the correct voicings, with interpretations involving E-flat Mixolydian colors, harmonic major sounds, and complex upper-structure triads. Hancock's writing here exemplifies his gift for combining accessibility with harmonic complexity during his early Blue Note period, when he was also contributing to Miles Davis's second great quintet. The composition has become one of the most widely performed and studied pieces from the Maiden Voyage album, embraced by jazz musicians at all levels despite its challenging changes. It has been arranged for big band settings by artists including Peter Herbolzheimer and Bob Mintzer, and its enduring popularity confirms its place as a genuine jazz standard.