This isn't your hipster neighbor's nu-folk. The Old Jawbone presents a rather pure strain of old-time folk, beginning with a shimmering cover of "Cotton-Eyed Joe" on mandolin, accordion, guitar, double bass, and knee slaps. Musicianship is superb throughout, but Sylvia Herold's bright, clear voice, seemingly built for storytelling, can't help but steal the show.
At Le Bateau Ivre (2629 Telegraph Ave., Berkeley) on Aug. 19. 7 p.m., free