Introducing the concept of music and painting as ‘rival sisters’ during the nineteenth century, this interdisciplinary collection explores the productive exchange-from rivalry to inspiration to collaboration-between the two media in the age of Romanticism and Modernism. The volume traces the relationship between art and music, from the opposing claims for superiority of the early nineteenth century, to the emergence of the concept of synesthesia around 1900. This collection puts forward a more complex history of the relationship between art and music than has been described in earlier works, including an intermixing of models and distinctions between approaches to them. Individual essays from art history, musicology, and literature examine the growing influence of art upon music, and vice versa, in the works of Berlioz, Courbet, Manet, Fantin-Latour, Rodin, Debussy, and the Pre-Raphaelites, among other artists.