Musical Comedy in Leipzig

The first time I went to the Musikalische Komödie in Leipzig I was impressed. What I had learned to call an operetta, a light musical piece with theatrical dialogues in between, has here ist own house, a very beautiful and unpretentious building where a restaurant is also to be found. (I didn't particularly like the food but the atmosphere was very cozy.)
The play I saw was Ralph Benatzky's Im weißen Rößl, a pleasant spectacle with good performers and the Austrian Emperor himself appearing on stage.
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P.S.A certain tune reminded me of a song in the film My fair Lady. It seems that the music of Im weißen Rößl is older.