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Opera, OPERA experiment, List of opera genres, Ópera (Madrid Metro), Opera Australia, Russian opera, Vlaamse Opera, Henan opera, Yue opera, Metropolitan Opera, Grand opera, Outline of opera, Peking opera, Opera (web browser), Malmö Opera, Opera in German, History of the Opera web browser, Opera in Azerbaijan, French opera, Italian opera, Opera Mini, Ballad opera, Sichuan opera, Opera News, Opera (company), Paris Opera, Comic opera, Opéra comique, Opera seria, Royal Swedish Opera, Opera in Ukraine, Lyric Opera of Chicago, Opera Cleveland, Opéra-ballet, Washington National Opera, Detroit Opera, Teochew opera, The Beggar's Opera, My Opera, Opera Mobile, Opera buffa, Opéra Bastille, Opera Philadelphia, Opéra bouffe, Opéra d'Avignon, Taiwanese opera, Israeli Opera, Wuxi opera, Chinese opera, List of major opera composers, State Opera (Prague), Space opera, Silesian Opera, Opera (disambiguation), Rock opera, Royal Opera House, The Royal Opera, Opera house, Opera in English, Huangmei opera, San Francisco Opera, Opéra National de Lyon, Cairo Opera House, Dutch National Opera, Chicago Civic Opera, List of opera festivals, Baltic State Opera, National Opera of Ukraine, Florentine Opera, Liyuan opera, Opera Carolina, Sydney Opera House, Gaojia opera, Turkish State Opera and Ballet, Han opera, The Little Prince (opera), Baltimore Opera Company, New Zealand Opera, Greek National Opera, National Opera House, Vienna State Opera, Savoy opera, Funen Opera, Opéra de Marseille, Suzhou opera, Wellington City Opera, Irish National Opera, Cologne Opera, Opera Atelier, Santa Fe Opera, Romanian National Opera, Timișoara, Opéra de Lyon, English National Opera, Wu opera, China National Opera, Soap opera, Hanoi Opera House, Revolutionary opera, Opéra-National, Charlottesville Opera, English Opera, Koroghlu (opera), Nickel City Opera, Private Opera, Opera management, Akhnaten (opera), List of opera houses and opera companies in Chicago, Cantonese opera, Pacific Opera, Hungarian State Opera House, Birutė (opera), Wrocław Opera, Toulon Opera, Yerevan Opera Theatre, Opera in New Orleans, National Opera and Ballet of Bulgaria, NBC Opera Theatre, Opéra-Comique, Korean revolutionary opera, Gothenburg opera house, Polish opera, Den Jyske Opera, Opera America, Opera Saratoga, L'Egisto (opera), Romanian National Opera, Iași, Lithuanian Opera Company of Chicago, The Threepenny Opera, Opéra national de Lorraine, Opera Delaware, Weiße Rose (opera), Romanian National Opera, Bucharest, The Complete Opera Book, Opera Soft, History of opera, Horse opera, International Opera Awards, Western opera in Chinese, Opera Queensland, Los Angeles Opera, List of Russian opera singers, Origins of opera, The Opera Quarterly, Florida Grand Opera, Bavarian State Opera, List of opera houses, Opera Australia Orchestra, Opéra national de Montpellier, Birmingham Opera Company, Glyndebourne Festival Opera, Houston Grand Opera