I caught the Polkabilly Rebels show at Lutakko at the end of October. This song was the final encore:
The song is originally an American-Finnish song which J. Karjalainen rescued from obscurity. It was among the tunes that Lomax collected that can be found in the Library of Congressf collections.
I managed to interview J. Karjalainen before the show. Once the interview is published in the New World Finn next month I will put it up here also.