Born in Finland, but living in Belgium, Timo has been an active participant in experimental sound activities in his current home. Originally a member of Noise-Maker's Fifes, he later split off and started his own solo project, Af Ursin. In recent years he also been active collaborating with others such as Raymond Dijkstra (in the duo Asra), Kris Vanderstraeten, Christoph Heemann (in the duo In Camera (2)) and Andrew Chalk (in the duo Elodie (4)). His latest groups are Nivritti Marga with Raymond Dijkstra and Frédérique Bruyas and La Poupée Vivante with Arlette Aubin and Frédérique Bruyas.

Though his music has appeared on several labels, he also has his own label, La Scie Dorée.

In 2007, he - together with the 2 other members of Onde - started the [l114269] organisation.