The fifty or so unpublished contributions brought together in this volume cover the fields of study of baroque music with an exceptional variety. Freely exploring the multiple fields of musicology, these studies have been grouped into five thematic sections. The first, entitled "Transmitting: catalogues and collections", aims to shed light on little-known musical heritages. The second, "From sources to interpretation", testifies to the necessary dialogue between musicologists and performers. The theme "Music, word, images", covered by the third part, opens the discussion both to musical iconography and to the contribution of the key theoretical texts. The heart of the section "Music on stage. Theatre and dance (17th–19th centuries)" reveals the richness of interdisciplinary approaches between musicologists and literary specialists. The fifth and last part, "Musicians in society in France and Italy (17th–18th centuries)", highlights the importance of musical practice far from the Versailles circle. The richness of this volume in homage to Jean Duron, founder of the Atelier d'études du Centre de musique baroque de Versailles, is a reflection of this extraordinary researcher who has played a central role for several decades in the rediscovery and enhancement of the musical heritage of the 17th and 18th centuries.