Being one of the leading protagonists of 20th century experimental art, Henri Chopin was among the first to exploit the true potential of a tape recorder. Many of his audio works are based on radical approaches, such as swallowing microphones. 43-minute documentary with memories and expertise of poet and curator Enzo Minarelli.

Letters and numbers as material for expression. 40 minutes with inventions by Brion Gysin, Demetrio Stratos, Henri Chopin, Lawrence Weiner and others.