Rachel Elkind produced the 1968 album "Switched-On Bach" for what American composer best for her electonic music and film scores?
Rachel Elkind-Tourre:  She produced the work of Wendy Carlos, most notably the bestselling 1968 album "Switched-On Bach". Wendy Carlos: Wendy Carlos (born Walter Carlos; November 14, 1939) is an American musician and composer best known for her electronic music and film scores.
Wendy Carlos