Staatstheater Wiesbaden has just announced its May Festival program, featuring seven operas and number of vocal works. Operas Wagner’s ‘Tristan und Isolde” will spotlight Catherine Foster, Lance Ryan, Andreas Schager, René Pape, Tobias Kehrer, Thomas de Vries, Margarete Joswig, Andreas Karasiak, Julian Habermann, and Erik Biegel. Ryan and Schager will alternate in the title role of Tristan, while Pape and Kehrer will {…}