I don't reckon that any other German user has noticed this yet, but one of the songs played in the taverns is clearly In Extremo's "Ich kenne alles" from 1999 (https://www.youtube.com/watch?v=CrBHrlLzEY8), albeit a slower version without the German lyrics and the guitars, mind you. Just wanted to leave that out there.
Could any of the developers confirm whether this was intentional or just a mere coincidence?