Carol.We have one of those singing and dancing christmas trees too! Scandinavian fiddle music sounds like it is all christmas music, unfortunately, it has been years since I have come across a good, listenable record that is all fiddles and fiddle tunes and can't make any recommendations--
It always struck me that Scandinavian Christmases were very insular, because they needed to create a warm, brightly lit place in the middle of darkness--The image is of a a big room, a roaring fire, all lit with candles, the smell of a fresh fir tree, and a long smorgasbord, with lots of pastries and cakes at one end, cups of black coffee and Julglogg, with fiddle music floating in from the other room--