(Triple Door) In 1992, I was living in Seattle and working at a bookstore owned and primarily staffed by lesbians, nearly all of whom loved good contemporary folk music. So when Nanci Griffith brought her '92 tour to the Paramount, nearly all my coworkers went, and every single one of them came back raving about the opening act, a woman who stood alone onstage with just a guitar and a humongous voice and the most beautiful songs you'd ever heard. The performer, of course, was Iris DeMent, who'd just released her debut album and was winning fans everywhere she opened her mouth. Two decades later, DeMent is back in Seattle, touring in support of Sing the Delta, her first album of all-new material in 16 years. No one who appreciates good old-fashioned country-folk should miss it.