Acoustic signals, voice, sound, articulation, music and spatial networking are dispositifs of radiophonic transmission. They have brought forth a great number of artistic practices. Up to and into the digital present radio has been and still is employed and explored as an apparatus-based structure as well as an (alternative) model for performance and perception. This volume investigates a broad range of aesthetic experiments with the broadcasting technology of radio. It also sheds light on the use of radio as a means of disseminating artistic concepts, and on questions of mediation of this art form.