On their second Katrina-anniversary-timed album in four years, this year’s Flower Petals, New Orleans’ R&B-tinged roots-rockers The Subdudes continue to explore a water-themed, working-class-sympathetic, minimal-pop take on their city’s roots. And if they’ve all but dropped the full drum kit since 2007’s Street Symphony, the drumbeat of dread and resigned woe remains. The best moments from the group, who open with a literal crack of thunder before settling into lite-FM bounce and Buffalo Springfield-from-Cajun-country groove, approach something like polished-up acoustic outtakes of The Band. The band plays an 8 p.m. show behind the album tonight at the Turner Hall Ballroom.
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