This release is the reissue of a legendary cassette produced for "Ikebukuro Cyber Cafe," an event organized by Yuji Takahashi at a space run by Art Vivant (Seibu). It documents a collaborative performance by Yuji Takahashi and Mamoru Fujieda using Mac-based computer systems (*1), recorded by Taku Sakurai at the home of Minao Shibata. Driven by unshakable conviction, the record captures inscrutable masses of sound in which sampled sources controlled by Takahashi on the Mac intersect with the sound system and FM synthesis (*2) operated by Fujieda in MAX. Takahashi's words in the program of the time h"within the flickering time of the everyday, the translucent coordinate axes of a dark cyberspace appear and disappear like a heat haze" hsuggest he may well have been possessed by something cyber-occult, and one wonders whether his remark in a magazine interview at the time h"the people who didn't come matter too. You weren't there, but you later learn that something apparently happened. Something entirely different can emerge from that image" hwas a prophecy. The intersection of contemporary music, rooted in reason, with a suspect cyber-occult world lasted only a very brief moment, and this release is an underground historical document of that "something perhaps best left unrecorded." Liner notes by Koji Kawasaki, the leading authority on Japanese electronic music.