1978 was a key year for Japanese music. Haruomi Hosono, one of the country's most innovative musicians had just formed Yellow Magic Orchestra pursuing the sonic experimentation he had started with his solo album Paraiso. The album, credited to Harry Hosono and The Yellow Magic Band, had been recorded between December 77 and January 78 and featured both Ryuichi Sakamoto and Yukihiro Takahashi. Hosono quickly invited both musicians to form YMO but before the group could release their first album, Sakamoto entered the Nippon Columbia studios in April 1978 with a plan.
Sakamoto had become an in-demand session musician after studying composition at the Tokyo University of Art and had played in many key albums of the time: Taeko Ohnuki's Sunshower and Tatsuro Yamashita Spacy to name just two famous albums. This led to an invitation by Hosono to feature on Paraiso. A penchant for avant-garde and improvisation had gotten Sakamoto interested in Electronic Music early on and with Thousand Knives, he decided to get Hideki Matsutake on board as he had mastered the art of synth programming following a stint with Electronic Music pioneer Isao Tomita.
Thousand Knives took several months to record as Sakamoto would be busy during the day with his session work and would only record at night. Named after Belgian-born poet Henri Michaux’s description of a mescaline experience, the album is a reflection on how synthesizer technology might come to change the face of music.