`Sound Art` is the catalogue that accompanies a new exhibition at the Fundacio Juan Miro Gallery in Barcelona. It offers a critical interrogation of this category in art and presents an overview of the sonorisation of the art object from the later C19 to today. The exhibition examines how, in the late C19 and early C20 many visual artists worked references to sound and music into their pieces using a variety of strategies. In turn, it also addresses the influence of visual arts on contemporary musical practices. It considers how several composers and visual artists turned the music score into a space for experimentation and performativity, and explains how the introduction of sound enables art objects to state their presence in a radically different, augmented way. In the text of this book, the experimental musician and artist Max Neuhaus questions the validity of the term `Sound Art` and so creates the starting point for the various artists and critics who also contribute to the discussion, including Suzanne Delehanty, Jean-Yves Bosseur, Maija Julius and Miki Yui, David Toop, Fiona McGovern, Ursula and Rene Block and Arnau Horta, who is the curator the exhibition and editor of this book.