Subotnick composed the album over 13 months in a small New York studio, working 10 to 12 hours a day on a modular synthesizer.
The album is split into two distinct sides, originally dictated by the physical limitations of vinyl: Silver Apples Of The Moon (VINYL RIP)
: The production was painstakingly manual. Subotnick would spend up to 10 hours fine-tuning a single sound, recording it to one of two tape recorders, and then overdubbing it with new layers. Subotnick composed the album over 13 months in