Music Concrete -- See Musique concrete Here are entered works in which the sounds produced were originally recorded on magnetic tape from natural sounds and subsequently rearranged or altered. The heading is used as a second heading when the tape is used with a specifically named medium of performance, e.g. 1. Quintets (Clarinet, flute, harp, viola, violoncello) 2. Musique concrete.
Music Electronic -- See Electronic music Here are entered musical works that consist solely of sounds performed live on electronic instruments or recorded from electronic instruments or other analog sources and sometimes subsequently rearranged or altered. The term "electronics" is used as the medium of performance in headings for musical works that contain terms for form or genre, e.g. Canons, fugues, etc. (Electronics). --Concertos, Sonatas, Suites, and similar headings with specifications of instruments; also Trios [Quartets, etc.] followed by specifications that include electronics; also Instrumental ensembles and music headings that begin with the word Electronic