(312) 755 - 8549 is an interactive sound installation that activates when audience members dial “312-755-8549” on their cellphones. Four-text scores presented on music stands, instruct audience members to use their cellphones to compose a composition collectively. Each call that is placed triggers the start of a new sample, leading to indeterminate and unique compositions . (312) 755-8549 seeks to disrupt the hierarchical relationship between performer and audience by remixing the assumed roles that we assign ourselves when we serve as a member of an audience.