Peter is currently accepting select singers into his studio.
His roster of students include singers from the Metropolitan Opera, San Francisco Opera, Deutsche Oper Berlin, Dresden Oper, Opera Geneve, Savolinna Opera festival, Finland, Dallas Opera, Tulsa Opera, Chattauqua Summer Opera Festival, Central City Opera, Sarasota Opera, Saratoga Opera, Portland Opera, Carnegie Hall as well as other venues.
Peter is co-artistic director of the Land of Enchantment Opera Institute, an elite training program for emerging young artists.
In addition to his private studio, Peter holds affiliations with the University of Tulsa, University of Texas, Austin, University of Georgia State, University of Manitoba, and McGill University. He presents masterclasses and workshops at these universities, and at other North American and European venues.