This battle royale involves a pair of acts forged from deeply musical, roots-loving families. The Parkington Sisters have more than their dear dulcet vocals and tight five-part harmonies to recommend them. They've attended universities and music conservatories, earning degrees in string performance. That instrumental approach lends a chamber music air to their moody atmospheric folk. The result is a frequently haunting traditionalism, with classical orchestral and gospel overtones, while tracks like "Let Go" indulge more of a somber pop vibe. —Chris Parker