The details of Shikisokuzekuu-Kuusokuzeshiki (1964) are unknown except that it was created at the NHK electronic music studio. According to Toshi Ichiyanagi, there were various discussions about the title, but it would seem to have been eventually broadcasted on the radio with the title Kuu after a producer renamed it. Here, the original title is used, following Ichiyanagi's initial intention. This work has no relation to the short experimental film Shikisokuzekuu (1974), produced by filmmaker Toshio Matsumoto with tape music by Ichiyanagi. Extended Voices was released in 1967 on the Extended Voices LP on Columbia's Odyssey sublabel; a new version mixing baritone voices of Takashi Matsudaira to a monaural tape part was released by Omega Point in 2014 (OPX 013CD), but since the stereo version was found later, it is added here as a tape work without voice. Tape recording provided by Gregor Meyer. Gatefold cardboard sleeve. Liner notes in Japanese and English. Edition of 500 copies.