Thomas Stewart, Josephine Veasey, Jon Vickers, Gundula Janowitz, Martti Talvela, Régine Crespin, Liselotte Rebmann, Carlotta Ordassy, Ingrid Steger, Lilo Brockhaus, Daniza Mastilovic, Barbro Ericson, Cvetka Ahlin, Helga Jenckel. August 25-December 30, 1966.