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.
Witold Rudziński Witold Rudzińsky (14 March 1913, in Sebezh, Russia – 29 February 2004) was a Polish composer, conductor, and author.