"It may have bothered him that people didn’t recognise his guitar virtuosity, which might be why the song devotes so much space to his shredding": A music professor breaks down the theory behind Prince's When Doves Cry

Purple Rain turns 40 years old this year, so to commemorate this occasion, I’m taking a look at the first single from its mind-boggling soundtrack. It’s also the first of Prince’s string of Billboard Number Ones. The single version is embedded above, with its iconic video, but the album version is longer - and better - and that’s the version I’m going to dig into in this article.