In this project, Noé Soulier reproduces physically sequences from the Improvisation Technologies where William Forsythe presents different tools to generate and analyze movements. By using them as dance material, Noé Soulier gives them another status: what was an explanation of a dance becomes the dance itself. These explanatory gestures are associated with a reflection on the way movements are defined in various choreographic practices. Words and gestures interact with each others creating correspondences, frictions and gaps.