Sonata Arctica

The release of the demo FullMoon led to the release of the band's first full-length album, Ecliptica (1999). 2000 saw various line-up changes: Kivilahti left the band and was replaced on bass by a returning Paasikoski, and Kakko was replaced on keyboards by Mikko Härkin to focus on the singing. However after the release of Silence in 2001, Härkin left the band for personal reasons and was replaced by Klingenberg (who also plays keytar). Under this line-up, Sonata Arctica released successful albums Reckoning Night (2004) and Unia (2007). However soon after the release of Unia, Liimatainen was sent in prison for failure of his mandatory civil/military service. He was temporarily replaced by Elias Viljanen, who became the band's full time guitarist when Liimatainen and the band, despite being in good terms, decided together that he would not return. Sonata Arctica's line-up has been stable since, and became the longest in the band's history; however Kakko decided in 2007 to play keyboards again, in addition of Klingenberg. Under this line-up, they have released two albums: The Days of Grays (2009) and Stones Grow Her Name (2012).