This thesis examines the relationships between popular contemporary musical styles and classic-era art music. Analysis of pop-rock songs, and their referential treatment in art rock, classical music, and society will be examined. Pop-rock musicians borrow from the masters of the past and from each other. Rock guitarists such as Eddie Van Halen employ a virtuosic technique suggestive of Liszt and Paganini. The group Rush borrowed freely from opera seria. Frank Zappa referenced contemporary musicians as well as classical techniques. Referential treatment in popular music and the recent advancements in technology, have challenged copyright law. How these treatments and technologies affect copyright legislators and musicians will be discussed.

Harry Partch's tuning system is an important contribution to tuning theory, and his music is original and significant. Part One of this study presents a brief biography of Partch, a discussion of his musical aesthetics (Monophony and Corporeality), and a technical summary of his tuning system. These elements are placed in historical perspective. Part Two presents a comprehensive analysis of "And on the Seventh Day Petals Fell on Petaluma," discussing the organization of formal, textural, rhythmic, linear, and tonal elements in the thirty-four "verses" of the work. Part Two concludes by showing how large-scale structure in the work is achieved through an overlay process.