…t, an annual concert sponsored by the Roots & Branches Conservancy for the benefit of fire prevention, water conservation and visitor services on Mt. Tam. The headliners are Wilco, fresh from a stint at the Fillmore, plus Los Lobos, the Stone Foxes, and Bill Frisell doing his album Guitar in the Space Age, which ought to sound very cool in the Mountain Theater around 4000 feet up. Bring a cushion and warm clothes. Details here. Nick Cave’s s…