The Green Music Box, Even is a website dedicated to the music of Marcel Duchamp. This site includes information about his works Erratum Musical; La Mariée mise à nu par ses célibataires même; and Sculpture Musicale.

This site will also include a Discography of recordings made of Duchamp's music and speeches/interviews given by him as well as sound clips and musical examples and lists of works of art dealing with musical subjects and Duchamp's musical suggestions in the form of cryptic, almost Fluxus-like notes.