Very nice arrangement. But where's the guitar melody between the verses from? Did they make it up or is it traditional? Sounds a lot like the intro to Home of the Knave.
found nice translate to english:
http://www.sing365.com/music/lyric.nsf/Per-Tyrssons-D%C3%B6ttar-I-V%C3%A4nge-lyrics-Falconer/87C52D06E59A734148256C59002B467E