Sonos Electronic a cappella? That's the unique choral category this L.A.-based group has created for itself with its spellbinding repertoire of electronically manipulated vocal stylings. "We're very comfortable performing purely acoustically," explains founding member Kathy Hoye, "but in the studio and playing live with a sound system, we essentially make electronic vocal music." On their critically acclaimed debut CD SonoSongs, Hoye and her fellow harmonizers used this innovative approach in bold and surprising interpretations of Radiohead, Imogen Heap, Depeche Mode, and Bjork songs. "Prepare to be stunned," the U.K.'s Guardian says of this award-winning quintet of musical trailblazers.