"Nihon Synthesizer Ongaku no Akebono" is a reissue series focusing on valuable works from albums that documented the trial-and-error of the early days of synthesizer music in Japan during the 1970s, many of which were never released on CD and are now hard to obtain. The series is supervised by Hideki Matsutake, a pioneer of Japanese synthesizer programmers and an honorary member of the Japan Synthesizer Professional Arts Association. "Digital Moon + Nazo no Mugen Onkai" couples "Digital Moon" (1979), a collection of cover themes from the film series "007" created by Hideki Matsutake during breaks from his work with YMO, with "Nazo no Mugen Onkai" (1978), an experimental mini album that uses infinite scale tricks based on auditory illusions. Newly remastered and reissued in high-quality Blu-spec CD2 format.