The Warsaw National Philharmonic Orchestra is a Polish orchestra based in Warsaw. Founded in 1901, it is one of Poland's oldest musical institutions. The orchestra was conceived on initiative of an assembly of Polish aristocrats and financiers, as well as musicians. Between 1901 and the outbreak of World War II in 1939, several virtuoso- and conductor-composers regularly performed their works with the orchestra, including Edvard Grieg, Arthur Honegger, Leoncavallo, Prokofiev, Rachmaninoff, Mauri...
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