Music composer, film director, multimedia author, sound designer, writer, Jean-Jacques Birgé considers music essentially in the audio-visual relationship, or at least in its confrontation with other forms of artistic expression. Founder of GRRR Records, he was one of the first synthesizers in France as early as 1973, and with Un Drame Musical Instantané the precursor of the return to film-concert in 1976. If his first electronic work dates back to 1965, he composes as well for symphony orchestras as he freely improvises with musicians from the most diverse backgrounds. For his "radio" creations and his multimedia shows, improvisation and preliminary writing merge, his own electroacoustic treatments are integrated with traditional instruments to create evocative musical fictions which he calls “music apropos” From 1995, he became one of the most well-known sound designers in multimedia and the specialist in interactive musical composition, seeking to deepen the effects of meaning and to develop an ever wider range of emotions. His researches often deal with generativity and interactivity which offer the player to discover each time a new interpretation. His soundscapes for exhibitions-shows (Grande Halle de La Villette, Grimaldi Forum in Monaco, Osaka and Omuta in Japan...) also present spaces in perpetual movement. He recently worked at the Louvre Museum, the Cité des Sciences et de l'Industrie, the Grand Palais, the Pantheon, the Palais de Tokyo, the ZKM...