For years the German 5F Achtung station has been known as Swedish Rhapsody from the interval signal on the music box.
Now, according to some unknown individual [1] with access to documents from the Polish Ministry of Interior the “real name of the music” is “Luxembourg Polka” composed by one (sic?) “E. Reissdorf.”
Music searches credit the above music to Rudolph Goehr and Emile Reisdorff. Of note, Emile Reisdorff, was the pseudonym used by English music manager/record producer Bunny Lewis.
Here’s a waltzer version of the Swedish Rhapsody[2]than a sort of pop version of the Luxembourg Polka[3]for comparative purposes to the music box tune.
[1]Numbers & Oddities Edition 200 May 2014
[2]
http://www.youtube.com/watch?v=Be3BZeoqs3Y[3]
http://www.youtube.com/watch?v=h97mW5DIqPM