When the Moog synthesizer appeared in the late 60s, musicians didn't know what to do with it.
But the Moog was a revelation for what synthesized sound could do, of a new technology that had unlimited possibilities.
In 1968, it entered the homes of millions of listeners through a classical album "Switched on Bach," by electronic composer and pianist Wendy Carlos.
Carlos met Moog in 1964 at a conference for the Audio Engineering Society and had the chance to investigate one of his early modular synths.
When Carlos released Switched on Bach, her first studio album, it was an immediate success. Moog himself said. "We witnessed the birth of a new genre of music"- fully synthesized keyboard music, without any acoustic instruments involved whatsoever.
A recording of Switched on Bach premiered at Carnegie Hall when Leonard Bernstein presented an arrangement of Bach's "Little" Fugue in G minor arranged for Moog, organ, and orchestra at one of his Young People's Concerts.
Glenn Gould praised the album, noting that it had "made electronic music mainstream" even as it introduced entire new audiences to Bach.
Carlos has since preserved her mystique through intense personal privacy and strict control of her copyright. You'll find very little of her music on the internet - no Switched on Bach streaming online.