Question: The Sinfonia Varsovia is an orchestra based in Warsaw, Poland, since 2003 the orchestra has been led by which Polish composer and conductor, as its artistic director?
Sentence (from "Krzysztof Penderecki"): Among his best known works are his "Threnody to the Victims of Hiroshima", "Symphony No. 3", "St. Luke Passion", "Polish Requiem", "Anaklasis", "Utrenja", four operas, eight symphonies and other orchestral pieces, a variety of instrumental concertos, choral settings of mainly religious texts, as well as chamber and instrumental works.
Relevant evidence: No