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Carnival Blocks or Blocos are street bands and groups that are the main popular expression in Brazilian Carnival in Brazil. These parades fall under the term "street carnival", and happen during a period of about one month (beginning before and finishing after Carnival). Carnaval blocos may performs samba music in Rio de Janerio, but perform other popular musical styles in other regions, including Frevo and Maracatu in Pernambuco and Axé in Bahia.
In Rio de Janeiro
Carnaval Blocos are found throughout Rio de Janeiro. The biggest bloco is the Cordão do Bola Preta that attracts some 200,000 people to downtown Rio. The second biggest is Monobloco that attracts 80,000 people at Copacabana Beach.
In Recife and Olinda
In Recife, the carnival block Galo da Madrugada, registered in the The Guinness Book of World Records as the biggest carnival parade in the world (In its 2013 parade the number of people was larger than 2,500,000).
Besides Galo da Madrugada, thousands of others carnival blocks with sizes ranging from few hundred to millions of people, perform in the streets of Recife and Olinda including "As Virgens de Olinda", "Eu acho é pouco", "Batutas de São José", "Lenhadores", "Pitombeiras", "Segura o Talo", "Bloco da Saudade", "Enquanto isso na sala de Justiça" or "Homem da Meia-Noite" .