Colin Vallon Trio was founded in 1999, with bassist Lorenz Beyeler and drummer Raphaël Pedroli, releasing his debut album Les Ombres in 2004.

He started to develop his own piano techniques at this time and the trio opens the Swiss Diagonales Festival with New-York guitarist Kurt Rosenwinkel.

In 2005 he forms a new trio with bassist Patrice Moret and drummer Samuel Rohrer, releasing the album Ailleurs (2007) on the label HatHut Records.

Numerous concerts at international festivals in places like Wilisau, Paris, Vienne, Rome, London, Portland, Montreal, in addition to tours in Europe, Canada, the United States, Japan, South Korea.

In 2015 the «Bee-Flat» jazz and world music venue in Bern, gives him a Carte Blanche to present three new projects, Ocre, a psychedelic rock oriented quartet with trumpeter Matthieu Michel, bassist Flo Götte, and drummer Domi Chansorn, Coriolis, a minimal improvisation quartet with vocalist and electronica artist Joy Frempong and clarinetist Hans Koch, and Fauna, a composition for cellos, harps, saxophones and drums, inspired by the strangeness of the animal world.