Demonstration of the Octopus system. Light sensors on the screen allow changing patterns in the film to drive an analogue synthesizer. Dedicated to Norman McLaren (1914-1987) in celebration of the 100th anniversary of his birth. Selected as an installation for the artistic program of NIME 2014 which was held at Goldsmiths, University of London, June 30 - July 3, 2014. www.nime2014.org The system has been used in live performances for the 'Experiments in Art and Technology' series of events in Kyoto and Berlin, collaboratively with Palle Dahlstedt (E.A.T. II) and Malte Steiner (E.A.T. III). 'The Octopus' was used to create a soundtrack for the short film 'Renai no Daikyouen (Banquet of Love)' in collaboration with Haruka Mitani. The film has screened at numerous festivals around the world. banquet.kasrl.org/news/