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Abigail Washburn

The Evanston-born master of the clawhammer banjo is a singer-songwriter with some serious bluegrass chops; she'll be accompanied by Nashville multi-instrumentalist Kai Welch. 8 p.m. Oct. 18 at City Winery, 1200 W. Randolph St., $22, $25, $35, citywinery.com; 8 p.m. Oct. 19 at Space, 1245...