Lionel Marchetti (France, 1967) is a composer of Musique Concrète. First self-taught, he discovered the catalogue of Musique Concrète with Xavier Garcia. He has composed in the CFMI of Lyon 2 University between 1989 and 2002, where he still organizes workshops focused on the loudspeaker, the recorded sound and Musique Concrète, both on practical and theoretical levels. He has built his own recording studio, and composes also in the Groupe de Recherches Musicales in Paris since 1990.Lionel Marchetti also performs improvisation using microphones and loudspeakers, as a duo with Jérôme Noetinger, and as a duet with the dancer Yôko Higashi (see videos on youtube)At the same time, he writes poetry, and develops theoretical thoughts on Musique concrète and the art of the loudspeaker.