Question: Sinfonia Varsovia is currently led by a Polish composer who was born in what year?
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