Sir Georg Solti, René Kollo, Christa Ludwig, Gottlob Frick, Dietrich Fischer-Dieskau, Zoltan Kelemen, Hans Hotter, Robert Tear, Herbert Lackner, Rotraud Hansmann, Marga Schiml, Heinz Zednik, Ewald Aichberger, Lucia Popp, Alison Hargan, Anne Howells, Kiri Te Kanawa, Gillian Knight, Margarita Lilowa,