The aim of this work is to provide information that can help in the construction of the interpretative process of 10 songs by the Brazilian composer Waldemar Henrique, composed between 1930 and 1937. In the 1930s, the composer from Pará stood out as one of those who adhered to the nationalist ideology of the Vargas era, moving to a canonical center of enunciation in search of visibility and national acceptance, Rio de Janeiro. Its theme, which aims to evoke the regionalism of its origin, was in line with the moment when multiple voices were raised from the global periphery to form a nationalist strategy. Within this context, historical information was gathered that could support the composer's aesthetic choices, as well as the technical and interpretative aspects used by radio singers. In order to understand the various facets of the object under study, the approach chosen was an ontological one.