Schwanda the Bagpiper, written in 1926, is an opera in two acts and five scenes, with music by Jaromír Weinberger to a Czech libretto by Miloš Kareš, based on the drama Strakonický dudák aneb Hody divých žen by Josef Kajetán Tyl. Wikipedia
Composer: Jaromír Weinberger
Librettist: Milos Kares