i wrote a review of thyrfing yesterday for www.zerostaronline.com . you can read my feature on them and get a sense of what they are like. i also posted that article in the review forum. but basically they take a mid tempo beat with a sort of euro metal feel and keyboards with an overall scandinavian folk sound. its very good. go check out their album "urkraft". its my favorite. their latest "vansinnesvisor" is also outstanding. i hope that helps.