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.
Ernst Naumann Carl Ernst Naumann (15 August 183215 December 1910) was a German organist, composer, conductor, editor, arranger and musicologist. He is best known now as an arranger and editor of the music of J.S. Bach, Mozart and Mendelssohn. He was a friend of Schumann and Brahms, and conducted the first performance of the latter's "Alto Rhapsody" in 1870.