Bio:
A "ganhadeira" is (was) a female earner, specifically a slave working either for herself or for her master.
The Ganhadeiras of Itapuã (Itapuã is a seaside neighborhood to the north of Salvador) is a group of women which sings the styles of music which were sung by ganhadeiras, the Afro-Brazilian sambas-de-roda and cantigas (songs) in general.