Founded and led the symphonic steel group Nightwish. He was seriously inspired by harmonic film music. He went to a music university for 11 years, where he researched clarinet, tenor saxophone, piano, and music theory. He co-wrote the Nightwish film Imaginaerum, that was released in 2012. His old sibling, Petri, became an autopsy helper. He was a devout enthusiast of Disney, Dragonlance, and J.R.R. Tolkien.