Trio elétrico

Trio Elétrico (Portuguese pronunciation: [ˈtɾiw eˈlɛtɾiku], electric trio) is a kind of truck or float equipped with a high power sound system and a stage for music performance on the top, playing for the crowd as it drives through the cities. It was created in Bahia specifically for Carnival and it is now used in similar events in other districts and countries. This setup is used in Brazilian Carnival inside the blocos carnavalescos and other festivals in Brazil, specially in micaretas . The idea was introduced in 1949 during a carnival in Bahia by the duo Dodô e Osmar (Adolfo Nascimento and Osmar Macedo).

Some Brazilian artists have been known to sing on a Trio such as Elba Ramalho, Daniela Mercury, Ivete Sangalo, Saulo Fernandes, Cláudia Leitte, Carlinhos Brown (from Timbalada), Asa de Águia and Chiclete com Banana. The popular Brazilian singer Caetano Veloso made famous the Trio Elétrico in the song, Atrás do Trio Elétrico só não vai quem já morreu - "Only the dead do not go after the Trio Elétrico".

The origins of the trio elétrico come from the "dupla eletrica" ("Electric Duo"), the two friends Adolfo Antônio Nascimento (Dodô) and Osmar Álvares de Macêdo, who decided, in 1950, to fix an old Ford Model T to perform their self-made electric instrument, known as pau eletrico (electric log), during Bahia carnival. They drove through the streets playing music powered by the car battery. The show took place in the city centre at 5 pm on carnival Sunday and attracted a large crowd.

...
Wikipedia