This event is free!
It starts at 2pm but I would suggest getting their earlier and picking a good spot.
As part of their annual free concert series, the San Francisco Symphony will offer a special tribute to Mexico with an afternoon of musical favorites conducted by New York based Mexican Music director Alondra de la Parra. Join this event organized by the Consulate General of Mexico in San Francisco and Friends of Mexico 2010 commitee as part of the Bicentennial of the Independence of Mexico’s celebrations. Organize a picnic with friends and family.