Z’EV (born Stefan Joel Weisser, at 7:58 a.m. on February 8, 1951 in Los Angeles, California) is an American text-sound artist and mystic who is perhaps best known for his work as a catacoustic (reflected sound-based) percussionist. He has worked as a professional musician since 1963, and is regarded as a pioneer of industrial music In 2008, Columbian critic Edgar Mauricio Ramirez Diaz described him as “Without a doubt one of the most influential persons in the whole post-industrial history of contemporary music.”    His work with both text and sound has been influenced by the Middle Eastern mystical system best known as Kabbalah (although not of the Jewish variety), as well as - but not limited to - African, Afro-Caribbean and Indonesian rhythms, musics and cultures. He has studied Ewe (Ghana) music, Balinese gamelan, and Indian tala. z’ev requests[3] that people note either « Z’EV » or « z’ev » are acceptable typographies for his « brand name » (context depending), but that « Z’ev » most emphatically is not.   After studying at CalArts with poet Emmett Williams, he produced works using the name S. Weisser, primarily concentrating on visual and sound poetries. In 1972, he was included in the « Second Generation » show at the Museum of Conceptual Art in San Francisco. Beginning in the early 1970s, he developed a personal technique utilizing self-developed instruments formed from industrial materials such as stainless steel, titanium, and PVC plastics. Initially these instruments were assemblages of these materials, used with a movement-based performance style that was a form of marionette, although with the performer visible.   The Noiser   A mediactivist, artist-researcher, composer / musician, poet and tongues destroyer, experimental film maker and anarchitect, founder and member of Apo33, Julien Ottavi is involved in research and creative work, combining sound art, real-time video, new technologies and body performances. Since 1997, he develops a composition work using voice and its transformation through computer. Active developer of audio/visual programs with Puredata, he has also developed since many years DIY electronics (radio transmitters, oscillators, mixers, amplifiers, video transmitters...etc) in the perspective of knowledge sharing on technological development. Main developer for the Gnu/Linux operating system APODIO for digital art and A/V & streaming diffusion. His practices is not limited to the art spheres but crosses different fields from technological development to philosophy / theoretical research, biomimetic analysis & experimentation. Since many years he reflects on the relations between experimental practices and collective practices within the creation of autonomous collective groups, putting in question the authorship strategy of the “art ideology”.   Julien Ottavi is part of a generation of audio artists to emerge in the 90\`s that indicated some of the directions that music and soundart is taking. While at art school, he organized a series of concerts, bringing international artists from the experimental scene to Nantes, drawing touring musicians to movements happening outside of Paris. This became not just a destination but a nexus for collaborations. This resulted for example in the group Formanex to perform graphical scores of electro-acoustic music, and in Apo33, an artists collective to facilitate, nurture, and disseminate creative audio practice. In this way, Julien represents the energy and initiative of a present day artist – activist through practice, organizing as performance, publishing as networking, open source and open aesthetic. This fluidity of working across boundaries of style and role are seen in his music, physical with computer, performative and reflective.