In a society characterised by visual saturation, Carroussa sonore offers a different space, an aesthetic and ephemeral experience in motion. Through the medium of sound it draws a new cartography of the city that lasts the duration of the listening experience. It is not the jukebox in the local bar or the home hi-fi system where the listener makes his or her own choice. It is closer to turning a radio dial, both fleeting and random, and is completed by the participation of the audience. Without this, sound remains a decor or, more precisely in this context, a second architecture that, by engaging in dialogue with the urban space, engenders an unusual soundscape. Far from following the defini- tion of the Canadian artist Murray Shaffer in which the “soundscape” is the environment that surrounds us, with Caroussa sonore, sounds are rather transposed into a different context. It invites the public to inhabit an immediate reconstitution of reality, to redisco- ver and transform apparently familiar places.