This very typical Swedish waltz is from a little town in the province of Gästrikland called Årsunda.
The town has an old history of settlement. Today it has a reconstructed “Viking village” used to demonstrate how vikings lived, dressed, ate, etc. a thousand years ago.
Here is a YouTube recording of Årsundavalsen being played on accordion. The video actually shows the player’s love for American cars, but the sound recording shows of the tune very well.