The third album from pianist/singer Nathan Phillips’ Big Bend project blends experimental methods with time-tested tradition. Working with avant-jazz master Shahzad Ismaily and a varied ensemble including Jen Powers of Rolin/Powers Duo and violinist Zosha Warpeha, Phillips transforms delicate folk songs into strange collages and elliptical ballads. At times reminiscent of the fluid, gauzy extrapolations of Talk Talk, Last Circle in a Slowdown might have more in common with Joan of Arc’s controversial ProTools workout The Gap. But Big Bend doesn’t embrace the alienation that comes with such studio manipulation and digital disruption, instead finding a lithe grace in the interstices of the regular and the revolutionary. Untroubled but eerie, Big Bend finds its own kind of ambiguous beauty.