An "instigator of creativity and a builder of community wherever she goes," Laura Cortese, a fiddler, singer, songwriter, multi-instrumentalist and bandleader, played and sang with numerous artists before assembling the Dance Cards, a quartet of singing string players. Her latest album, California Calling, features terrific harmony vocals and twangy jams. Cortese and her Dance Cards perform tonight at 7:30 at the G.A.R. Hall in Peninsula. Tickets cost $16 in advance, or $20 at the door. (Niesel)