What makes Ur Nattvindar by Månegarm notable?

'Ur Nattvindar' is significant for pioneering the viking metal subgenre in Sweden, influencing subsequent bands within this niche. It received positive reviews from specialized metal publications, highlighting its unique sound and thematic depth, which resonated with fans of both folk and extreme metal. Released as Månegarm's debut album in 1997, 'Ur Nattvindar' marked the band's entry into the Swedish metal scene. At this point, they were establishing their identity by merging folk elements with black metal influences, setting a precedent for future works.