Walk down any high street in the world and you'll see someone wearing that t-shirt. The one with the wavy lines. Yet many people wearing it may never have listened to the album whose cover hosts the artwork.

Cool design, but why does it resonate? And if you wear the t-shirt, should you bother listening to an album that's almost half a century old?

Join Ian Forth for a discussion on the enduring legacy of Joy Division's Unknown Pleasures.

Be expertly briefed each week on a wide variety of intriguing musical topics.