https://contemporain.opera-online.com/en/items Madama Butterfly - MET (2014) The Metropolitan Opera., 2014
https://www.opera-online.com/en/items Madama Butterfly - The Metropoli... The Metropolitan Opera., 2006
https://www.opera-online.com/en/items Madam Butterfly - The Metropolit... The Metropolitan Opera., 2006Madama Butterfly - The Metr...
https://www.opera-online.com/en/items Madama Butterfly - The Metropoli... The Metropolitan Opera., 2006