This book aims at drawing the reader?s attention to the sound of the urban environment. Using an interdisciplinary approach, it examines a heterogeneous selection of experimentations from the domains of music, art and architecture. Significant case studies of pieces of music, public art works and scientific research in the field of urban planning are analyzed, investigating the methods that have been adopted and the aural processes that have been generated. It then uses the findings to reconstruct the underlying theories and practices and to show what might be drawn from these procedures applied to urban planning.