Founded by Hector Miranda in 1960. Their first LP promoted by Violeta Parra, won the highest award from the Académy Charles Cros in 1970. The "Loisirs Jeunes" prize followed in 1971, along with several "disques d’or” in France,Spain and Mexico. They played the soundtrack of "Etat de Siege" the film by Costa Gavras starring Yves Montand and composed by Mikis Theodorakis. They took part with Atahualpa Yupanqui in : "Soy Libre", a Belgian TV program awarded a prize at the Montreux Festival in Switzerland.