cafemusic.wav is a sample from 
Title: Heute macht die ganze Welt Musik fr mich!
Artist: Benny de Weille mit seinem Orchester
Odeon, 1943
Recorded in Berlin, 06.06.1943
Genre: Foxtrot

https://www.youtube.com/watch?v=WbITz83OYvk

replacing the cafemusic.wav in the original pk3,
which is a piece of shit music we dont like :)