Patrizia Ciofi, Diana Damrau, Catherine Foster, Carmen Giannattasio, Venera Gimadieva, Edita Gruberová, Anja Harteros, Evelyn Herlitzius, Clémentine Margaine, Ricarda Merbeth, Sondra Radvanovsky, Gabriele Schnaut, Daniela Sindram, María José Siri, Anna Smirnova, Doris Soffel, Eva-Maria Westbroek, Elena Zhidkova, Roberto Alagna, Marcelo Álvarez, René Barbera, Pavol Breslik, Lawrence Brownlee, Joseph Calleja, Alex Esposito, George Gagnidze, Lucio Gallo, Stephen Gould, Günther Groissböck, Brandon Jovanovich, Simon Keenlyside, Zeljko Lucic, Simon O’Neill, Peter Seiffert, Bryn Terfel, Klaus Florian Vogt, Michael Volle u. v. a. m.