**Edition of 300 copies** Nantes trio Formanex celebrates 20 years of activism in experimental music with a 10 CD edition full of amazing collaborations with ONsemble (contemporary music group from Nantes and Saint-Nazaire) and composers they have worked with. The box set includes early works by Formanex’s own Julien Ottavi, unique compositions created by Keith Rowe, pieces by Kasper T. Toeplitz, Ralf Wehowsky, Seth Cluett, Michael Pisaro, Radu Malfatti, as well as other giants of contemporary music from the last 50 years; such as Phill Niblock and Christian Wolff.  A rare collection of CDs, this box set represents a broad vision of experimental music from noise to electronic abstract composition, radical minimalism, contemporary and improvised music.