This video marries the audio from a 1967 Moog 900 Series modular synthesizer demo record, which featured Walter/Wendy Carlos, with video of a Moog modular synthesizer.
A rare vintage demo record for the Moog 900 series synths, released by Moog when they were in Trumansburg, NY.
Music by Wendy Carlos of Switched On Bach fame, narration by Ed Stokes.
There are apparently two versions of this demo record in existence. This one, presumably the first version, with duplicate content on both sides, and a second with excerpts from Switched on Bach on the reverse,