Bolesław Szabelski (1904–1979) was a significant Polish composer and music educator known for his contributions to 20th-century classical music. He primarily composed in the genre of contemporary classical music, incorporating elements of Polish folk music into his works. Szabelski's style evolved throughout his career, reflecting influences from expressionism and neoclassicism. Notable works include his Symphony No. 2, composed in 1956, and various chamber music pieces, such as the "Sonata for Violin and Piano." His "Concerto for Piano and Orchestra" and orchestral works like "Sinfonia" showcase his innovative approach to orchestration and thematic development. Szabelski's impact on music extends beyond his compositions; he was a dedicated educator, teaching at the State Higher School of Music in Katowice. His teaching influenced a generation of Polish composers, and he played a vital role in promoting contemporary music in Poland. As a member of the Polish Composers' Union, he contributed to the cultural dialogue around music in post-war Poland, advocating for the integration of national elements into modern compositions. Szabelski remains a notable figure in Polish music history for both his artistic output and his educational legacy.