The research project "Broadcasting Swissness" investigates the construction and distribution of "Swissness" by means of (popular) music. At the core of the research project is the "Dür collection" – a convolute of approximately 8,000 audio tapes with "Swiss popular music" collected by the musicologist Fritz Dür on behalf of Swiss Radio International (SRI) between 1957 and 1967 as a musical Swiss visiting card. The collection was taken up into the Swiss National Library in 1987. The central question of the whole project is how and under what social and institutional circumstances popular music together with the institution radio did emerge as a powerful voice in the construction of – an acoustic – Swissness. – The project is interdisciplinary and examines the acoustic dimension of popular culture from the immediate post-war period to the present from the perspectives of music studies, ethnomusicology, and cultural anthropology. The joint analytical approach of all sub-projects towards the material is based on the question of the nature of the acoustic construction of a "Stimme der Schweiz" (Voice of Switzerland) by means of its fixation on a recording medium, which of course had its own influence as a form of media, in the compilation over a longer term of an acoustic catalogue, which had a canonising function, and finally through the mediation of the audio medium of broadcast radio, which stimulated the formation of an integrated ideal of acoustic Swissness. Three closely interrelated sub-projects based at three Swiss universities explore these negotiations of "popular music" through radio: The sub-project based at the Lucerne University of Applied Sciences and Arts/Department of Music examines the popular music scene in the 1950s and 1960s and the audio-musical side of the archived repertoire from a music studies and artistic research perspective.