Opera Software ASA

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