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