[7] Guitarist Jimmy Page played a Fender Telecaster that Jeff Beck had given him through a Tone Bender and a Supro amplifier.

[6] Drummer John Bonham plays fast triplets on a single bass drum, which drew praise from Jimi Hendrix.

The version of "Good Times Bad Times/Communication Breakdown" released 15 April 2014, on iTunes, is from 10 October 1969 in Paris, on the European Tour of Autumn 1969.

Cash Box said that "Combined power of a teen-rock vocal and a solid FM-ized instrumental set give Led Zeppelin a blistering single debut.

"[13] In a reassessment of Led Zeppelin in 2016, Andy Greene of Rolling Stone praised "Good Times Bad Times", writing that the song begins the album with a bang: "Jimmy Page's guitar pounces from the speakers, fat with menace; John Bonham's kick drum swings with anvil force; Robert Plant rambles on about the perils of manhood.