Wendy Carlos (born 14 November 1939 in Pawtucket, Rhode Island) is a composer and electronic musician. Carlos trained as a composer and worked as a recording engineer before her 1968 Switched-On Bach became the first classical music album to be certified platinum. This, and subsequent albums, brought the Moog synthesizer to wider public attention, and her 1971 soundtrack to A Clockwork Orange introduced the vocoder. Other notable work includes soundtracks for The Shining and Tron. (Her first six recordings were released under the name Walter Carlos.