From 1951 to 1966, he taught music theory and composition at the Music Academy Warsaw.
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He was rector of the State Higher School of Music in Łódź.
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Sikorski was born in Zurich, but studied in Warsaw, first music at the Warsaw Conservatory and then philosophy at the University of Warsaw.
Władysław Sikorski | Kazimierz Dolny | Kazimierz Kord | Michał Kazimierz "Rybeńko" Radziwiłł | Kazimierz Sikorski | Kazimierz Sakowicz | Radosław Sikorski | Michał Kazimierz Radziwiłł | Kazimierz Wiłkomirski | Kazimierz Serocki | Kazimierz Kuratowski | Jan Kazimierz Denhoff | St. John's church, Jan Kazimierz Wilczyński | Sikorski's | Michał Kazimierz Ogiński | Maciej Kazimierz Sarbiewski | Kazimierz Żygulski | Kazimierz Smoleń | Kazimierz Siemienowicz | Kazimierz Moczarski | Kazimierz Mijal | Kazimierz Leski | Kazimierz Kelles-Krauz | Kazimierz Kay-Skrzypeski | Kazimierz Fajans | Kazimierz Dłuski | Kazimierz Biskupi | Kazimierz Bein | Kazimierz Bartoszewicz | Kazimierz Adach |
Among the former rectors of the Academy were such luminaries of the Polish music scene as Kazimierz Wiłkomirski (1945-1947), cellist, composer, conductor and brother of Wanda Wiłkomirska, as well as Kazimierz Sikorski (1947-1954), recipient of the Order of Polonia Restituta (1937), composer of symphonies, overtures and concertos.
He studied composition with Kazimierz Sikorski and piano with Stanisław Szpinalski at the State Higher School of Music in Łódź and graduated in 1946.