Answer
Káťa Kabanová is the name of a one-act opera by Leoš Janáček, which was first performed in Brno in 1921. The opera is based on the play The Storm by Alexander Ostrovsky, and tells the story of a young woman named Káťa who is married to a man she does not love. The opera is notable for its use of folk music and its expressionistic style.