https://www.opera-online.com/de/items https://www.opera-online.com/de/items filtrer La Bohème - The Metropolitan Ope... The Metropolitan Opera., 1965
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https://www.opera-online.com/de/items https://www.opera-online.com/de/items filtrer Donald Maxwell Bariton
https://www.opera-online.com/de/items https://www.opera-online.com/de/items filtrer Franco Zeffirelli (1923–2019)
