This article analyses the administrative structure and development of Chile's indigenous policies under the dictatorship of Augusto Pinochet (1973–90), taking as its focus a pilot project for indigenous Mapuche integration known as Plan Perquenco. Officials formulated Plan Perquenco in accordance with the Chilean state's new administrative structure known as regionalisation. I focus on the unintended consequences of regionalisation that permitted the Mapuche youth group, Los Guitarreros Caminantes, to work through Plan Perquenco's music programmes to challenge the cultural politics of and justification for the pilot project.