Switched-On Bach is the debut album by American composer Wendy Carlos, originally released in October 1968 by Columbia Records. Produced by Carlos and Rachel Elkind, the album is a collection of pieces by Johann Sebastian Bach performed by Carlos and Benjamin Folkman on a Moog synthesizer. It played a key role in bringing synthesizers to popular music, which had until then been mostly used in experimental music.

Columbia Masterworks was a record label started in 1924 by Columbia Records. In 1980, it was separated from the Columbia label and renamed CBS Masterworks. In 1990, it was revived as Sony Classical after its sale to the Sony Corporation.