FRIDAY, APRIL 27—LAGNIAPPE STAGE, 11:30 A.M.

Persistence looks to finally pay off for Jon Roniger this Jazz Fest.

The New Orleans native makes his debut at the Fair Grounds this year a month before he hits the half-century mark. A globe-trotting singer-songwriter with a dozen solo albums under his belt, Roniger will perform with his Good for Nothin’ Band, a swinging staple of local music clubs whose formation was “nothing shor...