Abel Pintos explores the legacy and great influence of Mercedes Sosa, the woman who revolutionized Argentine folklore. Thus, through interviews with musicians and intellectuals who supported her at the beginning of her career, with her grandchildren who knew her most intimate side, and with artists such as Fito Páez and Charly García, Abel reconstructs and honors the Mercedes figure.
Haydée Mercedes Sosa, sometimes known as La Negra , was an Argentine singer/songwriter who was popular throughout Latin America and many countries outside the region. With her roots in Argentine folk music, Sosa became one of the preeminent exponents of nueva canción.