Jagger’s bedroom. Everyone was happy.”

The Rolling Stones Mobile truck would be used to capture Zeppelin at play. Kramer saw his role as “helping them achieve whatever sounds Jimmy wanted. He was the boss, very clearly.”

Kramer assisted Zeppelin to record eight tracks at Stargroves, four of which would end up on the album. (Three of the others – Black Country Women, The Rover and Houses Of The Holy itself – would appear on the next album, Physical Graffiti, while the final track, Walter’s Walk, surfaced on the posthumous collection Coda, released in ’82). He also mixed many of the tracks that made up Houses Of The Holy.

“These days, bands want it so perfect that they miss the magic that a band like Led Zeppelin had,” says Kramer. “You’ve gotnotes of Harrison’s Something into the arrangement. At one point it was intended to have been a further extension of The Overture, but that changed when Plant added lyrics and it was retitled The Rain Song.

“I love this track because of the typically esoteric Pagey guitar tuning, but also because of the role John Paul Jones plays on it,” says Eddie Kramer. “This was definitely the album where Jonesy finally stepped out of the shadows. I knew him from before Led Zeppelin, when he was a session musician.

"He was a superb arranger who could conduct an orchestra while playing bass with one hand. I once saw him do that. That Mellotron he plays on this is what lifts the track to another emotional level. And the piano, which