Sonja was born in the Swiss Mountains in autumn 78. At the age of four, she got in touch with her 1st instrument: piano. Beside her classical music studies, she was on the search for other musical styles. As a Depeche Mode and David Bowie young teenage fan, she was a bit out of her time. With the wonderful discovery of acid music sounds and electro rythmics she did while visiting underground and open-air parties all over Switzerland and Germany, she dived into the whirl of electronic music.
In the mid-90’s, when the rave Syndroma turned into a tasteless carnival, she devoted herself to weird parties organisations in several Geneva's squats for 3 years alongside the Mental Groove crew. At this time she gave up her piano studies for a newly-bought Roland R8, and then started to get professional bookings (Weetamix, Usine...) and to search for silence.
She began the new century teaming up with amazing friends. Miss Kittin opened her the doors, while Weetamix gave her a residency with Luciano. After several collaborations with friends (Serafin, Dandy Jack…) and crews (MUTEK Chile, Soap System Istanbul, Cosmic Chile Zürich), Sonja started in 2004 a new LIVE/DJ project named Junction SM (together with Dandy Jack), on an impressive combination of live and DJ sessions that lasts for hours. She also did several solo live sets.
Devoted to her studio, she continues to manipulate sounds and silences… Since 2005, the label/collective Ruta5 has been under reconstruction and a bunch of label parties are regularly organized. The productive side has not been forgotten, with several releases: among others, Sonja on Karat's compilation, Katapult various 3, that appeared at the end of 2007 on CD and on two split vinyl’s, and Junction SM on Kalk Pets and Lessizmore in 2009.
Playing regularly all over the world, we can’t wait to see her taking over the decks for a memorable Closing Night!