Photos: Paige K. Parsons MOUNTAIN VIEW — Neil Young sat in with Metallica and My Morning Jacket served as Roger Waters’ backing band on the first day of the 30th annual Bridge School Benefit Saturday. Nine different artists performed at the Shoreline Amphitheatre in Mountain View. The benefit aids…

MOUNTAIN VIEW — Strong lineups at Bridge School Benefit concerts are often overshadowed by the cause for the annual event; the kids with severe physical and learning impairments at the school started by Bay Area rocker Neil Young and his wife, Pegi. Saturday, at the first of two 25th…