One of John Cage's most striking musical inventions was the 'prepared piano' which he created in 1938 in order to place an entire percussion section in the hands of a single pianist. First used to accompany dancers, Cage composed several works using the prepared piano in which nuts, bolts and other items are placed on the piano's strings to alter the timbre. This second volume of Cage's Prepared Piano Music contains music written between 1940 and 1947. Contents:

• Root of an Unfocus Prelude for Meditation
• The Unavailable Memory of
• A Valentine Out of Season
• Spontaneous Earth
• Mysterious Adventure
• Daughters of the Lonesome Isle
• Music for Marcel Duchamp