Alison Fensterstock

When Pegi Young's marriage broke up at the end of 2014, she had no plans to make a new album. In fact, she'd just finished one, Lonely In A Crowded Room — which interested parties were eager, of course, to parse for clues of discord in her nearly 40-year partnership with Neil Young. In hindsight, perhaps they were there to be mined in the music, she said during a recent phone call.

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."