For 10 points, name this American composer whose 4'33'' features the performer not playing anything.
One of this composer's works was inspired by James Joyce's Finnegans Wake and is titled The Wonderful Widow of Eighteen Springs. He wrote the music for Syvilla Fort's dance piece Bacchanale. This man collaborated with Lejaren Hiller to write HPSCHD ("Harpsichord"). This composer used the I Ching to create a piece titled Music of Changes. He claimed it was possible to give "a single pianist the equivalent of an entire percussion orchestra" when he coined the term prepared piano. This composer of the Imaginary Landscape series had his most famous work premiered by David Tudor, who opened the keyboard lid of his piano to mark the end of the first movement. For 10 points, name this American composer whose 4'33'' features the performer not playing anything.
One of this composer's works was inspired by James Joyce's Finnegans Wake and is titled The Wonderful Widow of Eighteen Springs.
John Milton Cage Jr.