Even more impressive, Johns was perhaps the only person on a given day in the studio who was entirely sober, and so he is one of the most reliable and clear-eyed insiders to tell these stories today.
"It pissed me off, the assumption that, to be in with anyone famous, to be cool in that group, you had to do what they were doing."
Johns, who will be appearing in conversation at Priory Park Festival
, Chichester, next month, put recollections from his fifty years in the music business
in to the book, Sound Man
published in late 2014.
Paul McCartney said: "Glyn Johns was there. He was there at some of the most important recording sessions in rock and roll.
"Reading his book, you are standing beside him as he sets up the studio in readiness for the arrival of groups like Led Zeppelin, The Beatles, and The Rolling Stones. For me it is a fantastic romp through the pages of rock and roll history."
In the 1960s, while associated with the UK rock band The Presidents, Johns began working as a recording studio engineer at IBC Studios in Portland Place, London and was able to take the band in during weekends and try his skills at production and recording.
Pete Townshend added: "Sound Man opens with a declaration: A record producer has to have an opinion and the ego to express it more convincingly than anyone else.
"So Glyn Johns has stood his ground with a few bigheaded rock stars? I must be the exception.
"I've only had transcendental moments in the studio with Glyn.
"Returning to the control room after a studio take I often felt like running: the joy of hearing what Glyn had created out of the glue-and-string that was The Who was like a drug.
"He is an artist himself of supreme talent and experience."
Johns was called upon to rescue the troublesome Get Back sessions for The Beatles.
He compiled several versions of the album, which were all rejected by the band, before the project was eventually turned over to producer Phil Spector, resulting in the album being retitled Let It Be .. which Glyn called "a load of garbage."
In 2011, after a couple of decades spent largely away from production, Johns worked with Ryan Adams on his album, Ashes & Fire.
In February 2012, he began work on the Band of Horses album, Mirage Rock.
Johns is the father of Ethan Johns, the older brother of Andy Johns, and uncle of Will Johns.
Ethan has worked with Ryan Adams, Paul McCartney, Laura Marling, Ray LaMontagne and Kings of Leon.
Glyn Johns in conversation at Priory Park Festival, Chichester, on Saturday 9th July 2016. For times, prices amd line-up CLICK HERE.