At the end of 2010, Stefan Colomb responded to a call for projects launched by a cultural organization. The task was to compose the music for the trailer of the film "Magma"produced by Pierre Vinour for selection by a jury. Stefan participated with an original composition. He has developed a real work of creation, of research of sound texture and proposed tests on a cinema format. The aim is not to win the selection but rather to express themselvesto reflect, to observe and to understand the director's work, this project reinforced his commitment to composition for the image, and the inspiration it brings.