Igor Contreras Zubillaga is Juan de la Cierva Research Fellow at the Universidad Complutense de Madrid, Spain. A specialist of the relationships between music and politics in Franco and post-Franco Spain, he is the author of “Tant que les révolutions ressemblent à cela”. L’avant-garde musicale sous Franco (2021). Eva Moreda Rodríguez is Reader in Music at the University of Glasgow, UK. She specializes in the political history of music under Franco and the early history of recording technologies, with her latest monograph being Inventing the Recording. The Phonograph and National Culture in Spain (2021).