Deaf students and members of the "Music of Silence Band", Samuel Mergulhao Pontes (R), 16, and Sivaldo Beserra Ferraz, 16, carry their uniforms before their concert at the Madre Lucie Bray Municipal School for Deaf in Sao Paulo August 31, 2012. The technique of teaching music to deaf children was developed by Fabio Bonvenuto while working at this public school in 2005, where the percussionists feel the music through vibrations rather than sound waves. The band recently received an invitation to play in the opening ceremony of the 2014 World Cup alongside the country's top musicians. Picture taken August 31, 2012. REUTERS/Nacho Doce (BRAZIL - Tags: ENTERTAINMENT SOCIETY)