Jacek Ostaszewski is a world-renowned composer and musician based in Krakow, Poland, whose professional career dates back to 1964. He is a featured soloist in several films and with various orchestras on flute, recorder, bass, and sansa, and the founder of the world-music ensemble Osjan, which tours Poland and Europe annually. He is an instructor at Krakow's Theater Academy, and has collaborated with Polish groups that include Gardzienice, the Grotowski Institute, and Song of the Goat. As a composer, he has eighty plays to his credit, among which fifteen were directed by Krystian Lupa and performed in Europe and the US, most recently at the American Repertory Theater and NYTW. He also created ballet music for the Beth Soll Dance Company, wrote music for three feature-length and five short films, and five television specials. In the late 1980's and early 90's, Ostaszewski adapted Double Edge's Song of Absence and composed the company's Song of Songs, and also composed the music and was the flute soloist for the legendary Polish filmmaker Krzysztof Kieslowski on his Blue and Red.