Urban Sax is an ensemble founded by the French composer Gilbert Artman made up of massive numbers of saxophones, accompanied by percussion and sometimes voices. The group is directed by Artman and performs his compositions, which are generally repetitive and minimalist, often sounding somewhat mechanistic rather than conventionally expressive. The group was formed in 1973, when Artman organized a concert by a group of eight saxophonists he had produced at a classical music festival in Menton, in the south of France. In subsequent years, the number of players grew to 12, 16, 20, 24, and 30, and by the early 21st century, the group consisted of 52 musicians (with saxophones ranging from the soprano to bass registers). Artman frequently integrates local musicians and dancers into his performances, and thus the ensemble can encompass as many as 200 performers. Urban Sax has performed throughout Europe, in Asia and at Expo 86 in Vancouver. The group's performances are performance art happenings; players wear metallic space suit-like costumes together with gas masks, and each performance is a unique ritualistic event that is planned for the particular architectural or natural space where it is to take place. The Concept This project is built around the principle of spatial architecture and sound, and gathering saxophone (mobile devices) for a constant sound. The concept was initiated in a cradle of protean creation, with a strong notion of « in situ ». Movement and the movement of sound and its perception by the public or the audience is at the origin of the creation of the group. Saxophone then exists as an extension of the musician, and it becomes a resilient musical choreography. The Sound : The original musical principle is "continuous sound", around which build and develop poly-rhythmic loops, modulated and nested in a partition and a principle of "distant sound" allowing to question the listening audience. It is about linking audio and visual performances. The music is semi repetitive, with evolving pieces of different colors. Entire saxophone family is represented: sopranos, altos, tenors and bass baritones. Although the group adapts to each place setting, the basic structure is the distribution of musicians on 4 or 5 scenes surrounding the public, allowing the movement of sound around it, and continues generally by the grouping of musicians on the front stage. The Image : Over the years, Urban Sax has expanded and now consists of bassists, singers,