A COMPUTER AIDED INTERPRETATION INTERFACE FOR JOHN CAGE'S NUMBER PIECE TWO

International audienceConceptual musical works that lead to a multitude of realizations are of special interest. One can't talk about a performance without taking into account the rules that lead to the existence of that version. After dealing with similar works of open form by Iannis Xenakis, Pierre Boulez and Karlheinz Stockhausen, the interest in John Cage's music is evident. His works are " so free " that one can play any part of the material; even a void set is welcomed. The freedom is maximal and still there are decisions to consider in order to make the piece played. Cagener, is a project intended to develop a set of conceptual and software tools, that generates a representation of the work. It may be played live or showed as a sonorous installation. We deal here with the Number Pieces he composed in the last years of his life. The project calls for sound techniques, logic and musicological knowledge of the 21 st century to approach the original ideas of the composer. The computer serves as a partner in making choices of multiple possibilities, mix together sounds of different sources and of various kinds and following compositional ideas clearly stated. The role of the sound projection in space is an important part of the studio preview