This thesis explores a series of relationships between music and acoustics in order to develop a basis for discussing and critiquing aesthetics in post-Cagean experimental music. Specifically, it examines the acoustic and aesthetic theories that inform the practice of American composers La Monte Young and Alvin Lucier. One particular theme - the sine wave - emerges, both as a prominent feature in the work of these two composers, and also as a nexus point between music and acoustics. Pursuing this theme, the thesis begins by looking at issues in the science, technology, and ideology of acoustics in relation to the study of musical sound in the late nineteenth century. It then aims to situate the sine wave historically, culturally and technologically within a range of scientific and aesthetic practices in operation in the first half of the twentieth century. Finally, it explores the deployment of concepts from the field of acoustics by artists of the avant-garde, and considers what contribution these factors played in broadening the developing discourse of sound within the arts. These discussions then inform detailed investigations into the work of both Lucier and Young, examining their use of sine waves to explore and produce simple acoustic phenomena. / Doctor of Philosophy (PhD)

Thesis (Ph.D.)--University of Western Sydney, 2008. / A thesis presented to the University of Western Sydney, College of Arts, School of Humanities and Languages, in fulfilment of the requirements for the degree of Doctor of Philosophy. Includes bibliographies.