The last in our five-part series, where the festival puts the ‘jazz’ in Jazzfest.

Delfayo Marsalis & the Uptown Jazz Orchestra, WWOZ Jazz Tent
I was the first one up after obtaining maybe five hours of sleep, and I quickly rushed back off to the fairgrounds. It would have been nice to get more sleep, but I didn’t want to miss Delfayo Marsalis. The skies were still overcast and threatening rain, and it misted throughout the day. But, in a great gift from the music gods, it didn’t actually rain until about 20 minutes after the end of the festival.

The tent was packed for this 1:35 pm set and rightfully so, as the trombone ace from New Orleans’ first family of jazz led a 15-piece horn section through a set of swinging jazz numbers with a classic and classy vibe. Younger brother Jason Marsalis played drums and the set featured one crowd-pleasing number after another, with round after round of applause. This was the best jazz set of the weekend in this reporter’s view.

Ellis Marsalis, WWOZ Jazz Tent
Pianist Ellis Marsalis followed his son’s group with his own quartet for another great set, again featuring Jason Marsalis on drums. The songs were a little more subdued than Delfayo’s set, but the playing continued to sparkle. Jason delivered a stellar drum solo during one tune that won a huge round of applause, while all the band members soloed with great skill on a superb reading of “My Favorite Things.â€� It’s too bad that Wynton and Branford couldn’t be summoned for an all-Marsalis family jam, but getting to see Delfayo and Ellis in succession with Jason was another great Jazzfest treat.

The Dead Weather, Gentilly Stage
Jack White led his new group on drums in a hot set before a big crowd in the mist at the Gentilly Stage. White is a snappy drummer and every project he’s involved in oozes the blues, but the Dead Weather mix that old school blues vibe with a heavy indie rock sound that is just plain tantalizing thanks to lead vocalist Allison Mosshart. The former singer of the Kills appeared as some sort of dark, avenging angel, and she captivated the crowd on every tune. The new “Hustle and Cussâ€� featured a groovy syncopation that went over well. The set peaked with “Treat Me Like Your Motherâ€� from the band’s first album, a flat-out bad-ass rocker that saw the energy soar as Mosshart owned the stage. White also played guitar on one tune, treating fans to some of his bluesy shredding, before he and Mosshart sang a duet on a slow, dark simmering blues to end the set in haunting yet breathtaking fashion.