. . "Live electronic music (also known as live electronics and electroacoustic improvisation) is any kind of music that can include the use of electroacoustic instruments, various electronic sound-generating devices, and computers, but which generally excludes the use of prerecorded or sampled material. Initially the practice developed in reaction to sound-based composition for fixed media such as musique concr\u00E8te, electronic music and early computer music."@en . . . .