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.
Music of New York (state)
This popular dance music came about during the early 1960s in New York City. The first salsa bands originally consisted of Puerto Rican and Cuban immigrants who arrived in the early 1920s. This well known Latin fusion arose through the hybridization of rhythms deriving from areas such as Puerto Rico and Cuba. Salsa began as an informal product of various preexisting popular Latin American styles of music such as son montuno, guaracha, cha chá, mambo, and to a certain extent bolero, and the Puerto Rican bomba and plena. Famous American percussionist and bandleader Tito Puente is credited for taking this newfound Afro-Cuban mix and developing it into a more defined genre. Other popular American Salsa singers from New York who popularized the genre were Mario Bauza, Mongo Santamaria and Perez Prado. Growth persisted in the genre due to its close relationship with another well known New York genre referred to as Latin jazz. This Afro-Cuban rhythmic form later branched out from New York to various Latin American countries to form regional variants.