"It's not what you put into it; it's what you leave out. Listen to... you listen to Marvin Gaye... A song like 'What's Happenin' Brother.' There’s a single 'woo' at the end of the second verse - you know that woo - that single 'woo'… That's what you remember. The little things, the silly things. The mistakes... there's only one of them, and it makes the song. It's what you leave out. Yeah, that's rock and roll."