[1] According to biographer Michael Schumacher, Clapton was unable to find a melody that suited him, despite expending considerable time.

[4] Billboard described the single as an "unusual piece of folk-rock material with a clever dance arrangement.

"[5] Record World said that "Cream tell an intriguing fable in these grooves" and that its rhythms "have the sell sound.

"[6] Cash Box said that "surrealistic pictures are flashed one-after-another in a kaleidoscopic vision of today’s problems" and that the song "has a shock and near-protest appeal.

"[7] Cream mimed the song during their promotional appearance on The Smothers Brothers Comedy Hour in May 1968 with a video middle section in which the band carry tennis rackets.