This class consists of units mainly engaged in acquiring and registering copyrights for musical compositions and promoting and authorising the use of these compositions in recordings, radio, television, motion pictures, live performances, print, or other media. Units in this class represent the interest of the composing unit, or other owners of musical compositions, to produce revenues from the use of such works, usually through licensing agreements. These units may own the copyright or act as administrator of the music copyrights on behalf of copyright owners. Also included in this class are units publishing sheet music (including in bound book form).