Sextet was by the Polish composer who has completed how many operas?
Sextet (Penderecki) The Sextet is a two-movement composition for clarinet, horn, violin, viola, cello, and piano by Polish composer Krzysztof Penderecki. The composition was written in 2000 and is, according to some critics, the composer's most substantial chamber work to date.
Wojciech Bogusławski Wojciech Bogusławski (9 April 1757 – 23 July 1829) was a Polish actor, theater director and playwright of the Polish Enlightenment. He was the director of the National Theatre, Warsaw, ("Teatr Narodowy"), during three distinct periods, as well as establishing a Polish opera. He is considered the "Father of Polish theatre."