Finnish folk-metal ensemble Korpiklaani's sound is governed by the marriage of fat, compressed, electric guitar power riffs, charging accordion, and fiddle underscored by thrumming basslines and whomping, double-timed drums often played in sped-up march rhythms. The effect is at once martial and drunken, always celebratory, and often with traditional yoik vocals. Though their first three albums -- beginning with 2003's Spirit of the Forest -- employed English lyrics and death metal frameworks; by the time they issued their fourth, 2007's Tervaskanto, they'd shifted to all-Finn...