The first collaboration between KLIPEREI and Pierre BASTIEN dates back from the years 1986 and 1987, and the first common release came out in 1995 on Pierre BASTIEN's album "Eggs Air Sister Steel" (In-Poly-Sons). Then, in 1998, the Prikosnovenie label released the tw (three) protagonists' album "Mécanologie Portative". Coming from the same recording sessions, "Octogonale Impérative" cannot be considered at all like the bringing out of studio trimmings or barrel-scrapping. On the contrary, these recordings that remained in the shade and eventually remixed in 2009, are in the end more audacious than those of the original album.