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Opera, OPERA experiment, List of opera genres, Ópera (Madrid Metro), Opera Australia, Metropolitan Opera, Henan opera, Yue opera, Opera in German, Outline of opera, Malmö Opera, Russian opera, Peking opera, Vlaamse Opera, Grand opera, Opera (web browser), History of the Opera web browser, Ballad opera, Opera in Azerbaijan, French opera, Italian opera, Paris Opera, Comic opera, Opéra comique, Sichuan opera, Opera Mini, Opera (company), Lyric Opera of Chicago, Opera News, Opera Mobile, Royal Swedish Opera, Opera in Ukraine, Opera seria, Opéra-ballet, Washington National Opera, Teochew opera, Opéra bouffe, Opera Cleveland, My Opera, The Beggar's Opera, Israeli Opera, Chinese opera, Taiwanese opera, Detroit Opera, Opera buffa, Opéra Bastille, Opera Philadelphia, Wuxi opera, Opéra d'Avignon, Opera (disambiguation), Space opera, State Opera (Prague), List of major opera composers, Silesian Opera, The Royal Opera, Royal Opera House, Opera in English, List of opera festivals, Opéra National de Lyon, Huangmei opera, Rock opera, New Zealand Opera, Cairo Opera House, Dutch National Opera, San Francisco Opera, Opera house, Chicago Civic Opera, Turkish State Opera and Ballet, Opera Carolina, Han opera, Vienna State Opera, Gaojia opera, Baltimore Opera Company, Sydney Opera House, National Opera House, Liyuan opera, Baltic State Opera, Florentine Opera, National Opera of Ukraine, Irish National Opera, Funen Opera, Greek National Opera, Opera management, Savoy opera, Suzhou opera, Wu opera, The Little Prince (opera), Wellington City Opera, CO2 (opera), Opéra de Marseille, Charlottesville Opera, Hanoi Opera House, Opera in New Orleans, English Opera, Cologne Opera, Birutė (opera), Private Opera, Soap opera, Nickel City Opera, Revolutionary opera, Pacific Opera, Polish opera, Opera Atelier, Opéra de Lyon, English National Opera, Cantonese opera, Santa Fe Opera, Opéra-National, Opera Saratoga, China National Opera, Wrocław Opera, Toulon Opera, Romanian National Opera, Iași, Weiße Rose (opera), Koroghlu (opera), Romanian National Opera, Timișoara, National Opera and Ballet of Bulgaria, List of opera houses and opera companies in Chicago, Hungarian State Opera House, Opera America, Akhnaten (opera), L'Egisto (opera), Gothenburg opera house, Yerevan Opera Theatre, Lithuanian Opera Company of Chicago, NBC Opera Theatre, The Threepenny Opera, Korean revolutionary opera, Opéra national de Lorraine, Glyndebourne Festival Opera, Opéra-Comique, Den Jyske Opera, International Opera Awards, Los Angeles Opera, Horse opera, Norwegian National Opera and Ballet, Opera Queensland, The Opera Quarterly, Opera Delaware, Florida Grand Opera, List of Russian opera singers, Opera Company of Boston, Opera Soft, Opéra national de Montpellier, Romanian National Opera, Bucharest, Western opera in Chinese, The Complete Opera Book, Houston Grand Opera, History of opera, Birmingham Opera Company, Origins of opera