Internationally renowned, since the '70s he has developed his solo career, becoming one of the most important instrumentalists devoted to the music from Bahia. Son of Osmar, who, together with Dodô, invented the sound truck (Trio Elétrico) made famous in the Carnival of Bahia and later generalized throughout the country, he was taught to play by his father at age nine. He was already performing one year later with his own Trio Elétrico Mirim (Junior). After a stint amidst the Beatlemania craze adapted in Brazil as Jovem Guarda, he was hired by TV Tupi (Rio) and recorded his first album after winning an important novice show (Flávio Cavalcanti). His second single and first LP soon followed. In 1973, he recorded O Trio Elétrico de Dodô e Osmar with Caetano Veloso. In 1974, he was included in his father's Trio Elétrico, which was renamed Trio Elétrico de Armandinho, Dodô e Osmar. With Moraes Moreira as producer and singer, he recorded a series of LPs with the Trio Elétrico after 1975. In that year, he formed a group that accompanied Moreira, later being named A Cor Do Som, which performed internationally (in 1978 at the Montreux Festival, Switzerland, and in 1981 in New York, U.S.) and recorded several LPs with an innovative blend of choro, music from Bahia, and pop/rock. Based in early (around the '40s) prototypes designed by Dodô prior to the invention of the electric guitar, called the "pau elétrico," Armandinho designed the guitarra baiana, which is similar to an electrified cavaquinho. The guitarra baiana then became commercially produced by Dodô. In 1984, the Trio Elétrico performed in Rome, Italy, and, in the next year, in Toulouse, France. In 1986, they performed in France and Mexico and, in 1990, in Paris, France. In 1987, Armandinho shared a show with Raphael Rabello in Rio and, in the next year, played with Moraes Moreira in the U.S. In 1994, a live recorded show with A Cor do Som was awarded with the Prêmio Sharp (1996). In 1996, he also performed in the Jerusalem Music Festival, Israel, and, with the Trio Elétrico in the Montreux Festival and Tübingen Festival (Germany). In 1997, he recorded an album with Raphael Rabello, Rafael Rabelo e Armandinho Em Concerto, and participated in the Free Jazz Festival (Brazil). In 2001, Armandinho performed in the Rock in Rio Festival with Pepeu Gomes. ~ Alvaro Neder