Don't know exactly why...
Here's a nice dulcimer band for you, usually playing Morovian music. On their album Počúvajte, co vám povím (meaning: Listen, I'll tell you what) from 2010 they reveal the magic of Christmas.
Here's one song of that particular album:
Boła zima, velká metelica
(it was cold, a blizzard)
Have a wonderful winter!
Jan Willem