Opera Software ASA

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