She competed in newcomer talent shows from a tender age and had formal music training. Beth participated in bossa nova shows in the 60s, attracting attention when she sang "Andança" (Danilo Caymmi/ Edmundo Souto/ Paulinho Tapajós) in a 1968 festival. In 1971 she recorded the samba-enredo (a type of samba made specially for samba schools) "Rio Grande do Sul na Festa do Preto Forro", and managed to establish her name as a samba musician. Her readings of classic Cartola and Nelson Cavaquinho sambas became historic, and she was the first one to record a samba variation called pagode on the 1978 album "Beth Carvalho na Fonte", with songs like "Vou Festejar" (Jorge Aragao/ Dida/ Neoci), "O Isaura" and "Marcando Bobeira". She also hit the top of the charts with "Coisinha do Pai" (Jorge Aragao/ Almir/ Luís Carlos), from the 1979 LP "No Pagode".