“An Invariant Phenomenon of Symmetry by Specular Reflection In Johann Sebastian Bach’s Chorales”. Revista del Instituto de Investigación Musicológica "Carlos Vega" 35, no. 1 (November 23, 2021): 65–128. Accessed December 17, 2025. https://erevistas.uca.edu.ar/index.php/RIIM/article/view/3772.