From the early 1960s until the 1970s Matsutani was a key member of the influential post war Japanese art collective, the Gutai Art Association. Over five decades Matsutani has developed a unique visual language of form and materials. As part of the Gutai group, Matsutani experimented with vinyl glue, using fans and his own breath to manipulate the substance, creating bulbous and sensuous forms reminiscent of human curves and features.