Guitarist Ivar Grydeland and percussionist Ingar Zach, prime movers and catalysts for free improvised music in Norway, got in touch with Christian Wallumrød after hearing his “Sofienberg Variations” on ECM and they have since worked together in diverse combinations including, since 2004, ‘Dans les arbres’ a project completed by French clarinettist Xavier Charles. Their radical all-acoustic improvisation explores sonorities and textures that frequently sound electronic