Wendy Carlos, one of the great innovators in synthesized and electronic music, was born as Walter Carlos in Rhode Island on November 14, 1939. She underwent a sex-change operation in 1972, details of which she revealed during a surprise Playboy interview in 1979. Walter's last credited release is "Sonic Seasonings" (1972). Wendy's first credited release is the "Tron" soundtrack (1982), which was released on CD in 2002.