Jem Aswad Senior Music EditorWithout stretching the comparison too far, Charlie Watts was the Elvis Presley of rock and roll drumming: There was BC (Before Charlie) and after, and he can’t be compared realistically with anyone who followed because he’s an integral part of the foundation not just of the “World’s Greatest Rock and Roll Band,” but rock and roll itself.Watts was wry and rock-steady in both his playing and his personality.