Tom Petty has been a rock star for almost 40 years. He has a dozen or so songs that will be played on classic rock radio for as long as there is classic rock radio. If you’re a music fan of a certain age, there was a time in your life when he seemed inescapable. Even now, Petty is still a guy that most people know, even if you don’t actively care about him one way or the other. Tom Petty’s music doesn’t necessarily demand a value judgment. It’s like having an opinion on tap water or concrete. Why bother? It’s just there, reliable to the point of invisibility. If it went missing, you would notice.