The duo began recording albums; the first "Chants d'Argentine" (Songs of Argentina) was released in 1954. A year later, they recorded "Sous le ciel de l'Argentine" (Under the Sky of Argentina). They also made a test recording for Folkways Records in 1955. Though American ethnomusicologist, Alan Lomax, acknowledged the quality of their music, he refused to produce it, because as members of the upper classes, their songs were not authentic. In 1956, after a coup d'état removed Juan Perón from office, Valladares and Walsh decided to return to Argentina. Almost immediately, they scheduled a lecture, "El folklore como tarea poética" (Folklore as a Poetic Task), accompanied by some of their songs at the "Caja Popular de Ahorros" in Tucumán. Having experienced a celebration of Argentine folk songs in Paris, they recognized that there was not the same appreciation in their homeland. Until they broke up as a couple in 1962, after the Tucumán presentation, their performances were limited to intellectual venues.