Because of the important role music plays in the lives of young adults, the graduate education of young adult librarians should include a study of the music and the musical behavior of young adults. A formal course might include reviews of research in these areas: (1) the sound recording industry and the economic factors which determine what is created and diffused; (2) research in what is known about the young adult audience; (3) content analysis of the lyrics of songs to determine what messages are presented to the young adult audience; (4) theories of the meaning and effects of recorded music; (5) the formation of musical tastes and the extent to which musical tastes are determined by socio-economic variables; (6) music appreciation (i.e., to what extent can formal education change or direct musical tastes?); (7) the repertory (a review of the types of music available within the commercial repertory of recorded music); (8) criticism and its uses in the selection of materials and its impact on the cultural diffusion of materials; and (9) the role of libraries in the diffusion process. (Author)