Aged 15, I had two hi-tech pieces of sound equipment. A Philips cassette recorder, and a Bush radio. And everywhere I went, those two machines were sure to follow.

They were prized possessions, birthday presents from my parents. First, the Philips cassette recorder backstory: Why did I carry the cassette recorder, you will ask. It's not like it was a Bluetooth connected gadget filled with podcasts and Spotify. Plus, this was five years before the Sony Walkman, and two decades before the iPod. But, I had begun my rock music journey with something no millennial will fathom—the pre-recorded cassette. And, I carried cassettes and cassettes of Martin Birch around with me. Who's Martin Birch, you might ask. Musician? Singer? Nope. He was the sound engineer who navigated and produced the greatest rock albums from the early '70s though to 1990. He also motivated and pushed many great artistes to excel beyond their capabilities.