Arto and Antti Jarvela are cousins from Finland, part of a family with some of the deepest folk music traditions in the land. As well as participating in a wide variety of bands, they’ve released their first CD as a duo this past year, Os Fera Liluli, which presents traditional Finnish fiddle tunes and originals. Before teaching a workshop and performing at the WOW Hall in Eugene on Wednesday, December 10th, they visited the KLCC studios for songs and conversation with Eric Alan.