Julio Aagreras to Carlos Vega: Unpublished comments from the composer about the “cielo” from his Rapsodia sobre motivos criollos (ca. 1901) for guitar. (2022). Revista Del Instituto De Investigación Musicológica "Carlos Vega", 36(2), 33-46. https://erevistas.uca.edu.ar/index.php/RIIM/article/view/4761