Groundbreaking guitarist Cline keeps returning to Philly

Since his start in the late 1970s on the Los Angeles creative improvisational music scene, guitarist Nels Cline has moved among avant-garde jazz, noise rock, and crepuscular ambient sound. He may be best known for joining the alt-Americana ensemble Wilco in 2004. But his wide-ranging explorations continue, including Brazilian esoterica and dissonance with the CD Macroscope by the Nels Cline Singers.