It appeared after the World War II, at the end of the 1940s, and practically disappeared in the middle of the 1960s when majority of composers began to present their songs without category denomination.
The musical accompaniment can be anything, from piano solo or guitar duet to jazz-style big band or philharmonic orchestra.
Some representative sambas-canções of this kind are: No rancho fundo (1931, lyrics and music by Ary Barroso and Lamartine Babo), Na batucada da vida (1934, Ary Barroso and Luiz Peixoto") and Serra da Boa Esperança (1937, Lamartine Babo).
[2] Referring to the "first" samba-canção of this kind, Paulo Tapajós wrote in an LP jacket: Henrique Vogeler (Rio de Janeiro 1888–1944) was a composer-pianist with solid musical education, studied at the National Conservatory, but best known as the composer of popular tunes, and wrote this "first" Samba-canção as an opening number of a review.
[4] The above-mentioned LP contains some oldies, one Cartola composition and contemporary songs usually associated with bossa nova style.