古代祐三
In 1998, Jonne Valtonen co-founded his company "Valtone Oy", specialising in music productions for the entertainment industry. Continuing on this path, he also contributed two titles, in 2000 and 2002, for the "Merregnon" trilogy, an international soundtrack project featuring orchestral music by veteran video game composers from all over the world, such as Chris Hülsbeck and Yuzo Koshiro.