For Lil Malcolm & the House Rockers (right), it's all in the family. Accordionist Malcolm Walker leads his group Sat., MAY 3, for the ATLANTA CAJUN ZYDECO DANCE ASSOCIATION'S MONTHLY DANCE, with his father Percy on guitar, uncle Joe on bass and brother Percy Jr. on drums. Percy Jr. performed with the original Rockin' Dopsie's band before going on to form his own zydeco band, Percy Walker & the House Rockers, and now he's passed the torch to Malcolm. This is a special treat for the ACZA, considering south Louisiana is in the middle of its musical festival season with Jazz Fest in New Orleans and Festival International in Lafayette. The House Rockers' most recent CD, Zydeco Three Way, pays tribute to two of the genre's legends: Rockin' Sidney and Clifton Chenier. The monthly gathering features Louisiana food cooked up by former Katrina evacuee and current Atlanta resident Daisy Angelety, and dance lessons before the show. $8-$15. Dance lessons, 7 p.m.; performance, 8 p.m. 2620 Buford Highway. 404-825-9768. www.aczadance.org.