Tuomas Norvio is a sound artist RHC worked with in Petit Mal among other work.

"I design sound and music for performances, installations and films, and, as a sound. I am interested in rhythmical and arrhythmical masses of sound, using acoustic and sampled sounds as a material, as well as visuals and simple coding. The work varies a lot depending on the job. It can be composing, arranging, editing & remixing, producing, recording, programming patches on Max and Ableton Live, Processing, etc.

Recently I´ve been working with Kimmo Pohjonen, Tapani Rinne, Mikko Perkola, Hildá Länsman, Juuso Hannukainen, Johanna Juhola, Marianna Henriksson, Emil Holmström, defunensemble, Pekka Kuusisto, Sari Palmgren, Tero Saarinen, Johanna Nuutinen, Vera Nevanlinna, Saara Norvio, Circo Aereo, Kuriton Co., Tom Brand, Ilkka Rautio, Heikki Paasonen, Jukka Huitila."