members of the band, as was the case in Skyforger and Turisas. Vocals The diverse range of music styles and instruments is matched by a variety of vocal styles in the genre. From the "spine-chilling death shrieks" in Finntroll to the black metal rasps of Skyforger or Moonsorrow, there is no shortage of extreme vocals in folk metal. Other bands to feature extreme vocals include Cadacross, Ensiferum, Ithilien and Equilibrium. In contrast, bands like Mägo de Oz and Metsatöll are known to feature "clean" singing in line with their more traditional metal approach. Numerous other bands in the genre are known to feature both extreme vocals and clean singing. This includes Primordial, Turisas, Windir and Wintersun. Traditional folk singing can also be found among some folk metal bands. The yoik vocals of Jonne Järvelä have been featured in varying degrees in the music of Shaman, Finntroll and Korpiklaani. Folk singing or folk-inspired singing can also be heard in the music of Equilibrium, Metsatöll, Skyforger and Orphaned Land. The music of Orphaned Land also features the use of chants and choirs, commonly encountered in the genre of folk metal. Bands that are known to use a choir include Arkona, Turisas, Lumsk and Eluveitie, while chants can be found in the music of Týr and Windir. Some bands like Falconer and Thyrfing are also known to feature "yo-ho-ho folk melodies" in their vocals to suit their Viking metal style. Orphaned Land mostly uses English lyrics, but they are known to feature other languages as they "go well with the music and also sound more exotic and unique." Týr has also been known to use multiple languages in their music. Other bands in the genre are known to sing exclusively or almost entirely in their native language, including Mägo de Oz in Spanish, Moonsorrow in Finnish, Metsatöll in Estonian and Lumsk in Norwegian. Bands in the medieval metal subgenre also tend to sing largely or entirely in their German language, including Subway to Sally, Morgenstern and Letzte Instanz. Lead female singers are not uncommon in the genre and can be found in Cruachan, Otyg, Lumsk, Arkona, Celtian and Midnattsol. Other groups like Orphaned Land and Elvenking have employed guest female vocalists in their music. Lyrics Popular subjects in folk metal include paganism, nature, fantasy, mythology and history. Folk metal has been associated with paganism ever since its inception, when Martin Walkyier left his