There's no blanket rule for any of these things. You can always find the exception. Milton Glaser thought there was enough to go around for everyone if we were willing to share. Why do you think people get so protective of ideas? One of the things that I love about hip hop is the sharing and the sampling, building from one art form to another.
Exploring Rick Rubin’s production discography is like taking a tour through the commanding heights of American music over the past few decades. From Run-DMC to Jay-Z to Adele, the record producer joins to talk about his legendary career making classic songs with the best musicians in the world.