Extraordinary premiere of tango opera in Warsaw 17.01.2020 17:09 A darkly opulent and otherworldly production of the tango opera "Maria de Buenos Aires" with the mesmerizing music of Astor Piazzolla opens this weekend in Warsaw. Audio 04'55 NFP 20 01 17 EK MARIA Photo: Radio Poland Julian Horodyski Elżbieta Krajewska has been speaking to Michał Znaniecki, who has brought the world of Maria to Warsaw, and Alicja Węgorzewska-Whiskerd, director of the Warsaw Chamber Opera, who alternates in the title role.