Musical compositions created with tape recorders and magnetic tape using a variety of sources, both electronic and natural. Activities in tape music began in both Europe and America after the Second World War.
Various techniques such as splicing, tape loops, tape echo, sound-on-sound, tape feedback, speed changes, tape reversal and mixing are used in the making of this kind of music, all of which are usually simulated by contemporary digital editing techniques. (Source - Barry Truax Handbook for Acoustic Ecology CD-ROM Edition. Cambridge Street Publishing, 1999 - CSR-CDR 9901)
See also:Electroacoustic Music, Musique Concrète
UNESCO DigiArts- Introduction à l’histoire et à l’esthétique des musiques électroacoustiques: Session 3 - Du sonore à l’artistique: le timbre musical reconsidéré ( French )