This quick TED talk entry is courtesy of TED.com. The Teresa CarreÃ±o Youth Orchestra contains the best high school musicians from Venezuela’s life-changing music program, El Sistema. Led here by Gustavo Dudamel, they play Shostakovich’s Symphony No. 10, 2nd movement, and Arturo MÃƒÂ¡rquez’ DanzÃƒÂ³n No. 2.