"Trollhammaren" by Finntroll is performed in the original key of E minor. Released in 2004, the song is a popular track from the Finnish folk metal band's album "Nattfödd." Finntroll, known for their fusion of folk music elements with heavy metal, composed and performed the song. "Trollhammaren," which translates to "The Trollhammer," features aggressive guitar riffs, pounding drums, and traditional folk melodies played on instruments like the accordion and violin. The lyrics, sung in Swedish, revolve around trolls and their mythical world, characteristic of Finntroll's thematic style.