The text “Every Something is an Echo of Nothing”: Notes on The John Cage Project in Halberstadtaddresses TheJohn Cage Organ Project, the first trans-epochal work of art in music history. It is inspired by the American avant-garde composer and artist’s ORGAN2/ASLSP, which has been played at Saint Burchardi Church in Halberstadt, Germany, since 2001, and is expected to last until 2640. Different aspects involved in the Project are analyzed, such as its history, aesthetics, philosophy, and its utopian vision, as well as John Cage’s conception of time, which provides basis for the project.