Digital music gave us the technology, and the freedom, to listen to whatever we want, whenever we want. But more and more people are going back to older, analog ways of listening.

"I think this series is for anyone who loves a good murder mystery and also loves a bit of eroticism in their murder mysteries,” says Smith.

You might need to dig around a little in your headphone app or phone audio settings, but that can yield a treasure trove of ...