Äio

Äio is a release from Estonian folk metal band Metsatöll, released worldwide in 2010 on Spinefarm Records. It features heavy use of traditional instruments such as the lokulaud, torupill, kannel, and angipill, in addition to the typical metal band instrumentation (electric guitars, bass, drums, etc.)

Reception
In the May 2010 issue of Terrorizer magazine, writer James Hoare spoke with vocalist/piper Lauri "Varulven". Lauri is quoted as saying "No other countries have such good researchers of traditional culture and folklore than among oppressed peoples." Hoare also went on to praise the release, giving special note to the choir; the Estonian National Male Choir participated on the track "Ema hääl kutsub".

Metsatöll

 * Markus: vocals, guitars, lokulaud
 * Lauri "Varulven": vocals, acoustic guitars, flutes, torupill, kannel, angipill, mouth harp
 * Kuriraivo: bass, bass mandolin, shrieks, screaming
 * Atso: drums, percussion, vocals

Additional Musicians

 * The Estonian National Male Choir is: Mati Valdaru, Jaan Krivel, Lembit Tolga, Arvo Aun, Erkki Targo, Olev Koit, Rene Keldo, Margus Vaht, Meelis Hainsoo, Mait Männik, Peeter Hillep, Olari Viikholm, Andres Alamaa, Rasmus Erismaa, Geir Luht and Aare Kruusimäe
 * Choir Arranged By Tauno Aints & Conducted By Andrus Siimon

Production

 * Produced by Metsatöll
 * Recorded and engineered by Mikko Karmila (drums) and Kristo Kotkas (vocals, guitars, bass, choir)
 * Mixed by Mikko Karmila
 * Mastered by Mika Jussila