One of the first sound multiples ever created. Published by Edition Block in an edition of 36 copies, signed and numbered. Complete sound installation in wooden box (10.2 x 86 x 81 cm) containing 25 cassettes with different recordings of Wolfgang Amadeus Mozart compositions, 5 tape decks with built-in speakers, and accompanying screenprint. Created for the 200th anniversary of Mozart's death, Mozart Mix is considered the first sound installation published as a numbered edition. Cage composed works using the notion of 'random operations' and chance such as the roll of a die or fall of the Chinese I Ching stones. Accordingly, a unique 'sound' was achieved each time a composition was performed. Mozart Mix is predicated on similar terms. The work is intended as an interactional piece in which the listener/composer may play the tapes at random, simultaneously, and for varying durations. The acoustic result of any combination is essentially random, determined only by the user's choice. This kind of musical experimentation anticipated the current practice of mixing, scratching and sampling sounds and music from disparate sources. Each cassette is a different length, prepared as an endless loop. The public activates the sound installation by selecting five tapes and playing them simultaneously, becoming interpreters of Cage's composition. Random musical passages from various Mozart pieces meet in unpredictable constellations that will never repeat. The accompanying screenprint features a mesostic poem—a vertical reading of letters spelling MOZART—with the text "Music without horizon soundscape that never stops." The reduced lyrical form evokes Japanese haiku poetry. The playful character of the work references Mozart's own 18th-century musical dice game, "Anleitung zum Componieren von Walzern vermittels zweier Würfel." Mozart Mix reflects Cage's fundamental aesthetic principles of chance, indeterminacy, and the dissolution of boundaries between composer, performer, and audience. Created one year before his death, it represents a summation of decades exploring chance operations, Eastern philosophy, and the nature of musical experience.