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Janne Tolsa is a Finnish heavy metal musician. Known for his keyboard work in Tarot from the late 1980s, Tolsa also took part in the melodic death metal band Eternal Tears of Sorrow, which he joined in 2005 until their disbandment in 2025, as well as the industrial metal band Turmion Kätilöt. Tolsa is also known to work as a composer for television. Janne Tolsa plays keyboards in Marenne Band and is one of the composers in the band's debut album The Past Prelude.