Good drummers aren’t uncommon. Great ones are. We still mourn Keith Moon of the Who and John Bonham of Led Zeppelin as the jolly bashers of modernity. Here comes the future, they seemed to be telling us with their sensational ka-blammo. Together, they popularized the notion that, in rock-and-roll, a drummer’s unsolemn duty is to establish a sense of time while happily smashing it to bits. Greg Fox reactivates that idea for the Information Age.