The musicology of electroacoustic music has been reviewed by Landy (1999) in accordance with the traditional division of the discipline: historical musicology, systematic musicology and ethnomusicology, plus critical musicology. Because electroacoustic music cannot accept some tenets of Western art music, its musicology is necessarily critical. A study of musique concrète illustrates this. Electroacoustic music and its musicology are isomorphs in so far as both proceed by bricolage.