From Verified Handles
Tuomas Lauri Johannes Holopainen (born 25 December 1976) is a Finnish songwriter, multi-instrumentalist and record producer, best known as one of the founders and the leader, keyboardist and songwriter of symphonic metal band Nightwish. He has stated his songwriting is influenced by harmonic film music.Before founding Nightwish, he played in the band Darkwoods My Betrothed. from Wikipedia
These are provided for reference and have been verified to be accurate.