Astral Project 1:30 p.m., WWOZ Jazz Tent
This celebrated modern jazz ensemble has been reinventing itself since its inception in 1978. Producing well-crafted unions of New Orleans street funk, classical and progressive jazz and improvisation, the group released its first-ever live album, Astral Project Live in New Orleans, in April.
Kermit Ruffins & the Barbecue Swingers 2:35 p.m., Congo Square
Named for the pair of things closest to trumpeter Kermit Ruffin's heart, jazz and barbecue (and Louis Armstrong's "Struttin' With Some Barbecue"), the Barbecue Swingers produce rich, energetic and soulful jazz. The trumpeter is best known for co-founding the Rebirth Brass Band, but he favors classic swing with this set up.
Steve Riley & the Mamou Playboys 2:55 p.m., Fais Do-Do Stage
Often referred to as the master of the Cajun accordion, bandleader Steve Riley brings powerful vocals and lively accordion playing to a sound counterbalanced by David Greely's fiddling. This Grammy-nominated, southwest Louisiana group has performed original Cajun and French music for more than two decades.
Allen Toussaint 3:40 p.m., Acura Stage
With a musical career spanning more than 40 years, R&B artist and legendary hit-maker Allen Toussaint has performed, produced and arranged music for everyone from the Rolling Stones, Patti LaBelle and Etta James to Paul McCartney, just to name a few. His 2009 jazz instrumental album, The Bright Mississippi, earned him a Grammy nomination.
Nicholas Payton Sextet 4:15 p.m., WWOZ Jazz Tent
Trumpeter Nicholas Payton leads this jazz ensemble with selections from his 2008 album Into the Blue.
New Orleans Social Club, feat. Ivan Neville, Henry Butler, George Porter Jr., Leo Nocentelli and Raymond Weber 4:15 p.m., Blues Tent
Formed six weeks after Hurricane Katrina, this crew of accomplished New Orleans jazz and blues musicians released the 13-track album Sing Me Back Home in 2006.
Derek Trucks & Susan Tedeschi Band 5:45 p.m., Blues Tent
Fusing jazz, blues, rock, Latin and worldly music genres, The Derek Trucks Band released Already Free (Victor) in 2009. Trucks' wife, blues and soul songstress Susan Tedeschi, joins the band as a Grammy-winner musician in her own right.
Mardi Gras Indian Orchestra 5:45 p.m., Jazz & Heritage Stage
This crew of New Orleans musicians and Mardi Gras Indian leaders features Trail Chief David Montana, drummer Kevin O'Day, bassist Reggie Scanlan and percussionist Rosie Rosato, among others.
Louis Prima Jr. 5:55 p.m., Economy Hall Tent
The son of the original "King of Swing," Louis Prima Jr. follows in his father's footsteps as a bandleader and entertainer, playing swinging hits of the 1950s and 1960s.