Now in its eighth year, the Summer Art & Jazz Festival is a free outdoor shindig with local cuisine, arts and craft booths, 10 jazz concerts, and two youth jazz workshops. This year’s festival, themed “Guitars, Trumpets, & the Winds of Jazz,” kicks off with the United States Army Jazz Band Groove Therapy (5 p.m. Friday). El Salvador’s Guillermo Serpas headlines Saturday’s Latin Jazz Night (8:30 p.m.), with California’s Dan Siegel closing the festival Sunday evening (8:30 p.m.). This year, SAS Fest will treat 50 homeless children to dinner in a covered VIP area and donate a portion of proceeds to Any Baby Can. Although geared toward underprivileged middle- and high-school students, SAS Fest’s free jazz workshops (10-11:30 a.m. Saturday and Sunday) are open to anyone interested in learning about the musical instruments of jazz and the jazz music industry. Free, starts at 5pm Friday, noon Saturday, and noon Sunday, Crockett Park, 1300 N. Main (at Cypress), sanantoniosummerartjazzfestival.com