Joao Pedro dos Santos Teixeira, 11, who is deaf and a music student, poses for a portrait at the Madre Lucie Bray Municipal School for the Deaf in Sao Paulo on Sept. 4. The technique of teaching music to deaf children was developed by Fabio Bonvenuto while working in this public school in 2005, where the percussionists feel the music through vibrations rather than sound waves. Their "Music of Silence Band" recently received an invitation to play in the opening ceremony of the 2014 World Cup alongside the country's top musicians.

Alex Gustavo Moreira, 8, who is deaf and a member of the "Music of Silence Band," plays a tambourine next to teacher Maria Damaceno, at the Madre Lucie Bray Municipal School for the Deaf in Sao Paulo on Sept. 4.

Deaf students, from left, Joao Farias Alves, 11, Antonio Marques, 16, and Joao Pedro dos Santos Teixeira, 11, play bongos during their music class at the Madre Lucie Bray Municipal School for the Deaf in Sao Paulo on Sept. 4.

Deaf students Alexandre Rocha de Lima, left, 18, and Christoffer Rodrigues, 12, use sign language to communicate before their music class at the Madre Lucie Bray Municipal School for the Deaf in Sao Paulo on Aug. 28.

Alexsander da Silva, 14, who is deaf and a member of the "Music of Silence Band", arranges his uniform before their concert at the Municipal Theatre of Vinhedo city, 62 miles from Sao Paulo, on Aug. 31.

Music professor Fabio Bonvenuto, left, plays the bongs with his deaf students and members of the "Music of Silence Band", from right, Weslen Santos de Souza, 14, Sivaldo Beserra Ferraz, 16, Jhenifer Olivia da Silva, 14, Kelvin Santos Magalhaes, 15, and Franciele Santos Oliviera, 14, at the end of their concert at the Municipal Theatre of Vinhedo city, 62 miles from Sao Paulo, on Aug. 31.