Samba
Although samba exists throughout Brazil – especially in the states of Bahia, Maranhão, Minas Gerais, and São Paulo – in the form of various popular rhythms and dances that originated from the regional batuque of the eastern Brazilian state of Bahia, a music form from Cape Verde, samba is frequently identified as a musical expression of urban Rio de Janeiro, where it developed during the first years of the 20th century. Early styles of samba - and specifically samba de roda - are traced back to the Recôncavo region of Bahia during the 17th century, and the informal dancing following a candomblé ceremony. It was in Rio de Janeiro that the dance practiced by former slaves who migrated from Bahia came into contact with and incorporated other genres played in the city (such as the polka, the maxixe, the lundu, and the xote), acquiring a completely unique character and creating the "samba carioca urbana" (samba school) and "carnavalesco" (Carnaval school director). Samba schools are large organizations of up to 5,000 people which compete annually in the Carnival with thematic floats, elaborate costumes, and original music.
Samba
At the end of the 1920s, the carnival samba of blocks of the districts Estácio de Sá and Oswaldo Cruz was born, and in the hills of Mangueira, Salgueiro, and São Carlos, there were innovations in rhythmic samba that persist until the present day. This group, the "Turma do Estácio", from which would arise "Deixa Falar", was the first samba school in Brazil. Formed by some composers in the neighborhood of Estácio, including Alcebíades Barcellos (aka Bide) Armando Marçal, Ismael Silva, Nilton Bastos and the more "malandros" such as Baiaco, Brancura, Mano Edgar, Mano Rubem, the ""Turma do Estácio"" marked the history of the Brazilian samba by injecting more pace to the genre one performed, which has the endorsement of the youth's middle class, as the ex-student of law Ary Barroso and former student of medicine Noel Rosa.