“Music is like a psychiatrist,” he said. “You can tell your guitar things that you can’t tell people. And it will answer you with things people can’t tell you. But there’s a value to sad songs. Something bad happens, you don’t want to repress it. So you unload it on yourself, with a guitar. I’ve got a couple on my next album which are a bit – …. But it works, because with songs, you can do that.”

(Paul McCartney)