According to Aeschylus, Io had met Prometheus, chained, as she was roaming around the world, trying to escape Hera's vengeance. To create this libreto, Massimo Cacciari reuses elements of this drama and mixes them with exerpts from Hölderlin's Chant du destin. But when Nono take the textual matter, he streaps it of all narrative intentions and uses it for its sonic potential only as "in music only the sounds can speak"

Pictures by Cécile Nguyen-Ngoc