The Alter Audio Project contains a variety of digital musical experiences that allow users to engage creatively in sound and music composition in both urban and mountain environments. Users can engage in composition over time and a live musical collaboration. The project creates interesting theoretical, methodological, and technological questions. The Alter Audio project inquires into how different people see different meaning and environmental relevance in different types of sounds - music, ambient, effects, etc. The project tests how different individuals will combine sounds in response to the technical organization of the project, in response to working as individuals vs. as members of a collaborative team, and in projects that are live versus over time.