Clotted Symmetric Sexual Organ or C.S.S.O.are an experimental and progressive grind band from Japan. Combining elements of rock, jazz, pop, grindcore, manga themes and countless other genre's and styles to create an indescribable canvas of trippy, harsh and psychotic sound. Always stepping outside the lines of what's expected from your typical "grind" band, C.S.S.O.stand as one of the single most innovative groups in extreme music. C.S.S.O.is defunct as of 2001.