Polish music , including orchestras , also went underground . Top Polish musicians and directors ( Adam Didur , Zbigniew Drzewiecki , Jan Ekier , Barbara Kostrzewska , Zygmunt Latoszewski , Jerzy Lefeld , Witold Lutosławski , Andrzej Panufnik , Piotr Perkowski , Edmund Rudnicki , Eugenia Umińska , Jerzy Waldorff , Kazimierz Wiłkomirski , Maria Wiłkomirska , Bolesław Woytowicz , Mira Zimińska ) performed in restaurants , cafes , and private homes , with the most daring singing patriotic ballads on the streets while evading German patrols . Patriotic songs was written , such as Siekiera , motyka , the most popular song of occupied Warsaw . Patriotic puppet shows was staged . Jewish musicians ( e.g. Władysław Szpilman ) and artists likewise performed in ghettos and even in concentration camps . Although many of them died , some survived abroad , like Alexandre Tansman in the United States , and Eddie Rosner and Henryk Wars in the Soviet Union .