Music and identity are inextricably linked. While a particular social or ethnic group's music may reflect characteristics of that group, it also functions in creating the identity of the group. In Andean Bolivia, the choloethnic group has very subjective and constantly changing boundaries. Cholo-ness is made possible through mediated cultural performances of all types, in which members actively choose elements from both criollo and Indian cultures. Music is one particularly effective way in which cholos create and maintain their identity. This thesis focuses on the ways in which cholos use music to create a hybrid identity in and around Cochabamba, Bolivia.

Three original software programs utilizing improvisation and live sampling are presented here, along with a discussion of aesthetic issues raised by each. They are entitled Zur Elektrodynamik bewegter Musiker, Motet, and Gamepad Sampler. These programs vary in the degree of required interaction and in the kind of user control. They are each studies in imitative counterpoint through live sampling, with an approach seeking elegance before solutions. Because of the improvisational nature of these works, there is no standard musical score. Instead the complete Max/MSP source code and a sound recording of performances making use of these programs in varied situations are included. A discussion of issues raised by these works includes aesthetics, ontology, performance, and the role of the composer. Non-interactive indeterminate compositions are ontologically thin, because some composerly agency is required of the performer. An interactive work can be ontologically substantial if it makes distinct and significant contributions to performance, even though it may not make sound on its own. Although reproducibility reduces ontology and eliminates aura, live sampling within a performance can deepen the ontology of the performance by recontextualizing previous events, reframing the original event as the first reference to an abstract musical idea that lies outside …

The Concierto Romántico for Piano and Orchestra is one of Manuel M. Ponce's outstanding compositional accomplishments from his Romantic period, reflecting both the state of Mexican music at the turn of the 20th century, and his early nationalist tendencies. However, it remains the only concerto in Ponce's output in need of a more comprehensive analysis. This treatise focuses on a global investigative that examines descriptive and analytic references to the work, as well as a comparison and clarification of the existing score sources. An analytical and stylistic musical study using conventional theoretical techniques leads to a musicological interpretation of the work's extra-musical meaning, based on close assessments of Ponce's compositional practice and social principles.