Alison Fensterstock

At 46, Ben Jaffe is almost exactly the same age as Jazz Fest. Like a lot of New Orleans natives, he has memories of the annual event stretching back to childhood, though his experience is a little more rarefied than most. "That's where I got to sit on Fats Domino's lap and then hear him play," he says. It's where I heard Allen Toussaint play for the first time as a child.

The New Orleans Jazz and Heritage Festival kicks off its 47th iteration today, April 22. To celebrate its patron saint, we take a listen back to a particularly fierce live version of Professor Longhair's take on "Mess Around."