In the collected documents, musical forms and actors appear in contexts that previously available primary sources and historical musicology documents were not able to convey. These everyday contexts – like a news broadcast or a memory shared by a contemporary witness – demonstrate the multifaceted ways in which music can play a role in society and how it is characterized by ruptures and continuities. The analysis of the various levels (such as creation and reproduction, actors and musical forms) leads to cross-references involving people, places, times, events, repertoires that call into question historical narratives that rely upon linearity. One of the missions of the project is thus to devise a new approach to historiography which gives due consideration to the heterogeneity and plurality that are inherent in postmodern discourses and challenges the hegemonic position of the written form – and of the concept of a work of art.