Meribeth Dayme (1938-2019) has given master classes in singing and anatomy throughout the United States, the United Kingdom, and Europe. She is the author of The Singing Book, The Performer's Voice, and Dynamics of the Singing Voice..

Cynthia Vaughn is a respected singer, voice teacher, clinician, and coauthor of The Singing Book. A certified CoreSinging instructor, she has a decades-long association with Dayme and intimate knowledge of her methods.

Matthew Hoch is professor of voice at Auburn University. He is the series editor for the So You Want to Singbook series, associate editor of voice pedagogy for the Journal of Singing, and a certified CoreSinging instructor.