Bluegrass, country artist to perform at State Theatre Al Kaufman Contributing Writer The State Theatre will present an evening of bluegrass music Thursday night. Iris DeMent will join Leo Kottke for a musical evening. Dement said of all the things she has been called, she does not like to be called wholesome. “People use ‘wholesome’ or ‘old-fashioned’ to describe me all the time and I don’t understand it,” she said. “I keep thinking they mean boring, but I guess they…