Adriana Giarola Kayama e Eduardo Augusto Östergren, Angelo José Fernandes,. “Today’s Choral Practice: Sonority, Interpretation and Vocal Technique”. MÚSICA HODIE 6, no. 1 (November 7, 2007). Accessed October 7, 2026. https://teste.revistas.ufg.br/musica/article/view/1865.