Edgar Varese was a French-American composer who pioneered electronic music in the 20th century. He combined electronically generated sounds and subjected them to tape music techniques. Some of his famous works that used electronic music include Octandre, Ionisation, Equatorial, and Poeme electronique. Milton Babbitt was an American composer and music theorist noted for his serial and electronic music compositions. He combined the human voice with synthesizer-produced sounds in his acclaimed work Philomel. Pauline Oliveros was an American composer, accordionist, and key figure in experimental and post-war electronic art music. He explored mixed media and multichannel tape interacting with live performers. Some of his