https://www.opera-online.com/de/items The Exterminating Angel - Royal ... Royal Opera House - Covent ...
https://www.opera-online.com/de/items Così fan tutte - Royal Opera Hou... Royal Opera House - Covent ...
https://www.opera-online.com/de/items Ariadne auf Naxos - Royal Opera ... Royal Opera House - Covent ...
https://www.opera-online.com/de/items The Merry Widow - The Metropolit... The Metropolitan Opera., 2014