Brazilian Musician Joao Gilberto, Founder of Bossa Nova, Dies in Rio

Brazilian musician Joao Gilberto, 77, acknowledges the audience during his presentation late at night at the Teatro Municipal in Rio de Janeiro on Aug. 24, 2008. ARI VERSIANI/AFP/Getty Images

SAO PAULO — Brazilian musician Joao Gilberto, 88, died on Saturday afternoon in his house in Rio de Janeiro, relatives confirmed through messages in social media.