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 Cuba
As opposed to salsa, whose roots are strictly from Son and the Cuban "conjunto" bands of the 1940s and 1950s, Timba represents a synthesis of many folkloric (rumba, guaguancó, batá drumming and the sacred songs of santería.), and popular sources (even taking inspiration from non Afro Cuban musical genres such as rock, jazz and funk). According to Vincenzo Perna, author of "Timba: The Sound of the Cuban Crisis", timba needs to be spoken of because of its musical, cultural, social, and political reasons; its sheer popularity in Cuba, its novelty and originality as a musical style, the skill of its practitioners, its relationship with both local traditions and the culture of the black Diaspora, its meanings, and the way its style brings to light the tension points within society. In addition to timbales, timba drummers make use of the drum-set, further distinguishing the sound from that of mainland salsa. The use of synthesised keyboard is also common. Timba songs tend to sound more innovative, experimental and frequently more virtuosic than salsa pieces; horn parts are usually fast, at times even bebop influenced, and stretch to the extreme ranges of all instruments. Bass and percussion patterns are similarly unconventional. Improvisation is commonplace.