Gestural Sound means spatialized fields of sound that are shaped in realtime by the movements and activities of the inhabitants of a given environment. Again, the emphasis is on continuous, unanticipated movement that may be improvised freely by those within the conditioned space. Software instruments map continuous spaces of movement via feature extractors and mapping logics to the synthesis systems, including granular synthesis, filter models, physical models analogous to the realtime video models, and “learning” models. The development and experimentation with performative technology for mapping sensory data from one modality to another, scaffolds the exploration of sensation and aesthetic experience.