"Josefins Dopvals" means "Josephine’s Christening Waltz".
It is by Roger Tallroth of the Swedish band Väsen who use a guitar, a violin and a nyckelharpa (a hurdy-gurdy like instrument that is played with a bow).
It has also been recorded by Callanish, Alasdair Fraser and others.
I learned this at our Monday night jam.