Alf Björnberg is Professor Emeritus in Musicology at the University of Gothenburg. His research interests include music analysis, popular music history, and music and the media. He has published on music video, the history of music broadcasting in Sweden, the cultural politics of the Eurovision Song Contest, music and high-fidelity culture, and the history of popular music in the Scandinavian area. His most recent publication is the Swedish-language monograph En trovärdig illusion av musik: Den svenska hifi-kulturens uppgång och nedgång (Lund: Mediehistoriskt arkiv, 2020).