Jānis Liepiņš was a conductor for which opretta composed by Johann Strauss II?
Die Fledermaus Die Fledermaus (] , "The Bat", sometimes called "The Revenge of the Bat") is an operetta composed by Johann Strauss II to a German libretto by and Richard Genée.
Johann Berthold von Höffer Johann Berthold von Höffer (born in Ljubljana on 24 July 1667 - died 1718) was a nobleman from Ljubljana, and an amateur Slovenian composer. He founded "The Academia Philharmonicorum", Ljubljana in 1701, and primarily composed Latin oratorios. His artistic name in the Academia was "Operose Devius".