John Cage: Variations II (1961)

John Cage (1912-1992): Variations II, for any number of players and any sound producing means (1961). Versione per piano preparato. David Tudor, prepared piano. Cover image: painting by Blinky Palermo. The materials consist of 5 small transparencies with a single point each, and 6 larger tranparencies with one line each. These may be superimposed in any way, creating a configuration of the points and lines, to be interpreted as a way of producing sounds. This is done by dropping perpendiculars from