Pierre Boulez is a man of precision and meticulousness, as a conductor, as an author on music, and as a composer. He is constantly revising his work and adding new material to it, so that it evolves over time. To offset the eddying music of Boulez, the musikFabrik ensemble performs Ni, an existential and soothing piece by Mark Andre, as well as a new soundtrack piece for ensemble by Michel van der Aa.