In October 1962 John Cage and his great interpreter/co-visionary David Tudor visited Japan, performing seven concerts and exposing listeners to new musical worlds. This legendary "John Cage Shock", as it was dubbed by the critic Hidekazu Yoshida, is the source of this series of releases, three CDs and a "best hits" double LP compilation. Recorded primarily at the Sogetsu Art Center in Tokyo on October 24, 1962 (with two performances from October 17 at Mido-Kaikan in Osaka), all recordings in this series are previously unreleased. A major historical trove, unearthed.

The performances on this tour featured Cage and Tudor with some noteworthy Japanese musicians playing pieces by Cage and a number of other composers. The final of the series features Cage's "0'00"" (1962), also referred to as "4'33" No.2", performed by the composer, with daily activities such as writing and drinking coffee amplified by contact microphones into sonic abstraction, following the score's directions: "with maximum amplification (no feedback), perform a disciplined action". Next is "Composition II for 2 Pianos" (1960/61) by Michael von Biel, lovely and sparse, performed by Tudor and Ichiyanagi. The disc closes with Ichiyanagi's "Piano Music #7" (1961), performed also by Tudor and Ichiyanagi, beds of silence disrupted by pianistic stabs, music box madness, traffic recordings, percussive thumps, tape manipulations and more.