Jessica Pratt is an old soul. On her debut self-titled album, which she released last year, her gravelly, warm voice and delicate acoustic guitar strumming sound so reminiscent of female folk artists from the Seventies that it’s surprising the record doesn’t need to be dusted off before it’s played. At the same time, the entire album also manages to feel timeless, as Pratt seamlessly balances world-weariness with lightness and wonder: Her music has a calming, meditative quality. When she performed at Great American Music Hall last fall, her stage presence was subdued, but that didn’t stop her from captivating a rapt, silent audience. Pratt recently moved from San Francisco to Los Angeles, so don’t miss your chance to see her at The Chapel (777 Valencia St., San Francisco) this week. The wintry night will be drenched in folk, as singer-songwriter Sarah Bethe Nelson and acoustic duo Neal Casal and Lauren Barthe round out the bill.