Acoustic signals, voice, sound, articulation, music and spatial networking are dispositifs of radiophonic transmission which have brought forth a great number of artistic practices. Up to and into the digital present radio has been and is employed and explored as an apparatus-based structure as well as an expanded model for performance and perception. This volume investigates a broad range of aesthetic experiments with the broadcasting technology of radio, and the use of radio as a means of disseminating artistic concepts. With exemplary case studies, its contributions link conceptual, recipient-response-related, and sociocultural issues to matters of relevance to radio art's mediation.