Guest Artist John Hines, internationally acclaimed bass and vocal pedagogue, is a Professor of Voice at the University of Northern Iowa. A member of the UNI faculty since 2006, he is a teacher of singing who also maintains a local, national and international profile as a concert artist, master class clinician, competition adjudicator, and champion for the performance of Russian vocal music.

Jeffrey Peterson, pianist and coach, has appeared in recitals and master classes on five continents, with such important operatic artists as Martina Arroyo, James King, and Teresa Kubiak, in venues as far-reaching as Hoam Hall in Seoul, the Marian Anderson Festival and Competition, and Manaus, Brazil. He has performed throughout the United States with flutists Francesca Arnone, Valerie Potter, and Tadeu Coelho. Dr. Peterson has taught at Indiana University, the University of Illinois, the University of Akron, and served on the Opera Studies Faculty at Northwestern University for five years.