van Kampen D. A Historical and Statistical View on Old-Roman, Gallican, and Gregorian Chant. J. Music. Theo. Transcult. Music Stu. [Internet]. 2025 Sep. 23 [cited 2025 Dec. 3];3(2):79-90. Available from: https://jmttms.com/index.php/jmmtms/article/view/30