The Musicology Department at University of Jan Casimir in Lviv played a very important role in Polish and Ukrainian science. The Department was established by Adolf Chybinski - outstanding Polish scientist, who directed the Department throughout its existence (1912-1939). In the Department of Musicology studied Poles, Jews and Ukrainians. There were often conducted pioneering research on music, both Polish, European and, to a lesser extent, Ukrainian. Graduates and students of Lviv musicology wrote numerous publications in various Polish and Ukrainian magazines and newspapers. A large number of new music magazines in interwar Poland were established through their activity. The educational and artistic activities of the graduates and students contributed to development in interwar Poland, both Polish and Ukrainian culture and science.