Throughout his career, Chopin experimented with typewritten text poems called dactylopoèmes (literally, typewriter poems) and with sound poetry (poésie sonore). Using cutting-edge portable recording equipment to make his sound work, Chopin was fascinated with noises of the body, including breathing, cries, and the almost imper­ceptible rustle of a single hair; at one point he went so far as to swallow a microphone, hoping to pick up the most intimate rumblings of his body’s interior. From 1963 to 1974 the artist published the influential magazine Revue OU, which incorpo­rated innovative typography and sound in the form of 45-r.p.m. records and published an international array of poets and artists, including Bernard Heidsieck, François Dufrêne, Brion Gysin, Robert Filliou, and Emmett Williams, among others.