Hancock wrote the piece to help sell his debut album as a leader, Takin' Off (1962), on Blue Note Records; it was the first piece of music he had ever composed with a commercial goal in mind. The popularity of the piece, due primarily to Mongo Santamaría, paid Hancock's bills for five or six years. Hancock did not feel the composition was a sellout however, describing that structurally, it was one of his strongest pieces due to its almost mathematical balance.
The form is a sixteen bar blues. Recalling the piece, Hancock said, "I remember the cry of the watermelon man making the rounds through the back streets and alleys of Chicago. The wheels of his wagon beat out the rhythm on the cobblestones." The tune, based on a bluesy piano riff, drew on elements of R&B, soul jazz and bebop, all combined into a pop hook. Hancock joined bassist Butch Warren and drummer Billy Higgins in the rhythm section, with Freddie Hubbard on trumpet and Dexter Gordon on tenor saxophone. Hancock's chordal work draws from the gospel tradition, while he builds his solo on repeated riffs and trilled figures.
Read more about this topic: Watermelon Man (composition)