Copresented with KCRW 89.9FM. Music, Food Trucks, Cash Bar: 7:30—10:30 p.m. Happy hour: 6:30—7:30 p.m. Galleries open until 10 p.m. Free live concerts and KCRW DJs in the museum’s courtyard. Food trucks and cash bars. Known for ferocious live sets, young rockers The Tracks lived up to the hype on last year’s debut album, Treasured Memories. Having grown up as the children of undocumented immigrants in East L.A., the group builds on the rich history of rebellious Chicano rock ’n’ roll bands.