Sextet was by the Polish composer who has completed how many operas?
Krzysztof Penderecki Krzysztof Eugeniusz Penderecki ( ; ] ; born 23 November 1933) is a Polish composer and conductor. "The Guardian" has called him Poland's greatest living composer. 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.
Warsaw Accordion Quintet Warsaw Accordion Quintet (Polish: "Warszawski Kwintet Akordeonowy" ) is the Polish chamber ensemble formed in 1961 by Włodzimierz Lech Puchnowski. Since its inception, the quintet has performed about 1,600 concerts in Europe and Asia, participated in 25 festivals of contemporary music (including the "Warsaw Autumn" Festival) and made numerous radio and television recordings. The quintet has released 4 analog disc records and 2 CDs.