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.
Mittwoch aus Licht Mittwoch aus Licht (Wednesday from Light) is an opera by Karlheinz Stockhausen in a greeting, four scenes, and a farewell. It was the sixth of seven to be composed for the opera cycle "Licht: die sieben Tage der Woche " (Light: The Seven Days of the Week), and the last to be staged. It was written between 1995 and 1997, and first staged in 2012.