Quarteto Ômega

Quarteto Ômega formed in Rio de Janeiro in 1964, with Newton Mendonça, Ronaldo Bôscoli, Luís Carlos Vinhas, and Edu Lobo as its original members. They came up during the bossa nova movement, and their first album came out the following year. The group's arrangements were known for their vocal intricacy, and they worked across styles that included samba and jazz.

Their 1967 album gave its name to the song 'A Esperança,' which became particularly well-known. The track was written by Vinícius de Moraes and Milton Nascimento. Other songs in their catalog, like 'Aguardo Um Novo Tempo' and 'Ele É o Amém,' carried similar themes of faith and anticipation.

The lineup changed over time. Edu Lobo left in 1965, and Mendonça followed in 1967. Later members included Chico Buarque, Geraldo Vandré, and Maurício Tapajós. They kept recording into the early 1970s, with albums like 'Beatles no Samba' from 1968 and another self-titled release in 1973.