At the suggestion of Al Jardine, Wilson arranged a version of "Sloop John B", a traditional Caribbean folk song that Jardine had learned from listening to the Kingston Trio. His arrangement blended rock and marching band instrumentation with the use of flutes, glockenspiel, baritone saxophone, bass, guitar, and drums. Jardine likened the result to John Philip Sousa. Wilson elected to change the original lyrics from "this is the worst trip since I've been born" to "this is the worst trip I've ever been on". This may have been done as a deliberate reference to acid trips.