Produced by Wayne Hall, Joseph Cottrell, Jeffrey Crecelius and Ken Fuller

Mark was back this week and we welcomed YMP listener and Patron Jon Pickles onto the show to talk about the time he was a 'tea boy' at Trident Studios in London. You'll need to listen to the interview to hear all about it but Trident was the world-renowned studio where, amongst unnumbered highlights of rock music, Yes recorded overdubs for their first album, Queen recorded their first two albums and The Beatles recorded Let It Be and other seminal songs.

Listen out for stories about Rick Wakeman, Bill Bruford, Trevor Horn and many more!

• What did Jon have to do as a 'tea boy'?
• Who did he meet and work with?
• What was it like being in Soho in those days?