The original flexi-disc was released as a souvenir during the famed World Expo '70 in Osaka (think Stockhausen and Xenakis), but was available for only a brief time and soon disappeared, an object of rumor and mystery for collectors.

As befitting Expo 70's remit as a meeting of world cultures, Ohno chose six well-loved Japanese and international songs - and rendered them entirely in animal and bird sounds, using analog tape recordings. Choju Gigaku contains equal measures of musicality, magic, madness and mayhem, with domestic and barnyard animals combining their natural and pitchshifted voices with the calls and cries of a multitude of birds. Eschewing musical instruments, Ohno utlized Japan's first variable-speed tape recorder to create these melodies, adding delay and reverb to the warm analog mix.

The five songs of Choju Gigaku are "Sekaino kunikara kon'nichiwa", the theme song for Expo '70 originally sung by Haruo Minami, the Japanese traditional songs "Sakura Sakura" and "Yagi bushi", an Italian song "Funiculi, Funicula", the Russian "Volga Boatman" and an American classic "Oh My Darling, Clementine".

Recording in Sogosha studios (his production company) in Aoyama, Ohno was ably assisted by avant-garde composer/musician Takehisa Kosugi (Taj Mahal Travellers, Merce Cunningham and many others), who was an integral part of the recording process.

Available exclusively with full reproduction of the original sleeve plus liner notes by Matsuo Ohno himself.[info from em]