Yes - I remember there are these great bands that play (but nobody dancing). There are polka bands, brass bands, accordian players etc. Scandahoovian. And a lot of scandinavian crafts and food. At least, all that will fit in a tiny parking lot.
The fun thing about the music is - that it is dance music - but everyone sits in seats and listens. Probably best not to risk breaking a leg.
The other fun thing I recall is there is a man who tells viking stories to kids. That is kind of amusing to listen to him.

One thing missing, however, is lutefisk. At least i would like to see a lutefisk eating contest.