Jari Kainulainen

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Jari "Jartsi" Kainulainen (born 29 April 1970) is a Finnish bass guitarist. He is best known as the former bassist of the power metal band Stratovarius from 1993 to 2005. He is currently the bassist of Masterplan, having joined 2012.

After his period in Stratovarius he founded his own band called Mess. Between 2002 and 2006, Kainulainen played bass with Kotipelto, a Finnish power metal band formed by Timo Kotipelto, singer of Stratovarius. In 2007, he joined the Swedish progressive power metal band Evergrey. In 2010, Jari Kainulainen created the power metal supergroup Symfonia along with Andre Matos, Timo Tolkki, Mikko Härkin and Uli Kusch. He joined Masterplan in 2012. In 2013, he created the melodic power metal band Shadowquest.

Kainulainen plays Ibanez six-string basses and uses Ampeg amplifiers. He is influenced by Geezer Butler, Billy Sheehan, Cliff Burton, and Steve Harris.<ref name="myspace">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>