Columbia subject headings:
Computer music.
Electronic music.
Music--United States--20th century.
Harvard subject headings:
Avant-garde (Music)--United States--History--20th century.
Electronic music--United States--History and criticism.
Mumma, Gordon, 1935-
Music--United States--20th century--History and criticism
Princeton subject headings:
Computer music.
Electronic music.
Music--United States--20th century.