H, T.; MARTENSEN, K. How Thomas A. Edison shaped today’s singing ideal: Tracking his ambiguous concept of tremolo by analysing archival documents and sound recordings. Empirical Musicology Review, [S. l.], v. 14, n. 1-2, p. 22–49, 2019. Disponível em: https://www.osu.tests.sfulib4.publicknowledgeproject.org/index.php/EMR/article/view/6689. Acesso em: 29 apr. 2026.