Meribeth Dayme, an authority on the singing voice, has given master classes in singing throughout the United States, the United Kingdom, and Europe. She regularly teaches courses in the vocal arts and workshops in self-development for singers and teachers of singing, and management training courses for major corporations. She is the author of The Performer's Voice, Dynamics of the Singing Voice, and Creating Confidence.
Cynthia Vaughn teaches voice and song literature at Colorado State University and is in demand nationally and internationally as a clinician. For twenty years she has also taught beginning to advanced singers in her private studio and is an active performer in concert, opera, and musical theater. She is Vocal Literature Coordinator for the NATS Intern Program, National Association of Teachers of Singing.