Claude Cadoz is president of the ACROE, which he founded in 1976 with Annie Luciani and Jean-Loup Florens. At ACROE he is responsible for the scientific and art programme Musical and Multisensory Arts. Cadoz is the designer of the GENESIS software, addressing sound synthesis and composition thanks to the technology of mass-interaction physical modelling. Since 1975, he initialised the realm of virtual realities by his work on haptic gesture interactions. Together with Jean-Loup Florens, he was the author of the first force-feedback gestural devices in 1978. Claude Cadoz’s musical work is a direct application of his research in Mass-Interactions physical modelling.