Experimental music organisation created in 1997 with the aim of promoting some of the new types of music and sound practices that do not receive large media coverage. The purpose of APO33 is to create the conditions for the development of all the kinds of music and sound practices which contribute to the advancement of sound creation. These kinds of music and sound practices include those called electronic music, concrete music, contemporary written music, sound poetry, sound art or those that have no name: we group these multiple practices under the name of audio art. To enable the development of audio art, APO33 organises several activities: concert programming in different places in the city of Nantes and its suburbs, the formation of spaces of creation, experimentation and research open to the public, the production of CD’s on the label Fibrr, the organisation of educational interventions in schools and other structures and the development of artistic research and interventions with the CIA (Cellule d’Intervention d’APO33). Members: Julien Ottavi, Sophie Gosselin.