Therion is a pioneering Swedish symphonic metal band founded and led by multi-instrumentalist, composer, and vocalist Christofer Johnsson. Originally a death metal band, Johnsson took their name from the Celtic Frost album To Mega Therion. By their third album, 1993's Symphony Masses: Ho Drakon Ho Megas, Johnsson remained the only original member and Therion's sound began an evolution toward doom metal with electronic and vanguard elements. For 1996's Theli, the quintet embraced classical and global music too: With two classical choirs, a simulated orchestra, and an army of ke...