Music teacher Fabio Bonvenuto leads the "Music of Silence Band", comprised of deaf and non-deaf students, during a class at the Madre Lucie Bray Municipal School for the Deaf in Sao Paulo September 4, 2012. The technique of teaching music to deaf children was developed by Bonvenuto while working in 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 September 4, 2012. REUTERS/Nacho Doce (BRAZIL - Tags: ENTERTAINMENT SOCIETY)