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