Daniel Abraham is Professor of Music at American University. Alicia Kopfstein-Penk is Adjunct Professorial Lecturer at American University. ANDREW H. WEAVER is Professor of Musicology at The Catholic University of America, Washington, DC. Alicia Kopfstein-Penk is Adjunct Professorial Lecturer at American University. ANDREW H. WEAVER is Professor of Musicology at The Catholic University of America, Washington, DC. Robert C. Lagueux is the Associate Vice President for Academic Affairs and Dean of Graduate Studies and Faculty Development at Berklee College of Music, Boston, Massachusetts, USA. He researches and publishes work on medieval music, liturgy, and drama, and more widely on pedagogy, teaching, and learning.