 Dent & Sons, Ltd., 1973) 120), Ginastera composed his opus 10 of 1943, "Cinco canciones populares argentinas", or "Five Popular Argentine Songs".In these songs, Ginastera draws from the Argentine "cancionero popular", which catalogues the traditional songs and dances of each province and is used, in turn, to teach these to school children.While not all of the melodies of the opus 10 songs are of actual traditional folk origin, the tunes are, on the whole, more overtly Argentine than those of his other song sets composed during this period ("Dos Canciones de Silvia Valdèz", "Cantos del Tucumán", and "Las Horas de una Estancia").