Musicians of the Simon Bolivar National Youth Orchestra during a concert led by Venezuelan maestro Gustavo Dudamel (out of frame) in Berkeley University in San Francisco on November 29, 2012 on the kick off of a US tour. The Simon Bolivar National Orchestra is part of "The System" or Social Action for Music, conceived by Venezuelan conductor and composer Jose Antonio Abreu is a state foundation that supports youth orchestras to encourage children from poor backgrounds to adapt to school and society while learning musical instruments with orchestra members. AFP PHOTO/LEO RAMIREZ (Photo credit should read LEO RAMIREZ/AFP/Getty Images)