Swedish sisters Klara and Johanna Soderberg were one of the hits of Lollapalooza in August, mixing the close harmonies of folk, a hint of soul and a blast of metal with their hair-flailing, guitar-thrashing attitude.
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7:30 p.m. Sept. 24 at Metro, 3730 N. Clark St., $21; metrochicago.com&lt;/b&gt;