One of the most revolutionary 20th century composers, John Cage utilised methods and constraints in his work which seemed more closely aligned with conceptual art than the concert hall. His scores, sometimes bearing obtuse Fluxus-style instructions, have very little in common with conventional notation. They serve not just as blueprints for performance but also as fascinating artefacts in their own right. These examples cover around four decades, beginning in 1940.
Spectres of Artaud