A contribution to the field of urban music studies, this book presents new interdisciplinary approaches to the study of music in urban social life. It takes musical performance as its key focus, exploring how and why different kinds of performance are evolving in contemporary cities in the interaction among social groups, commercial entrepreneurs, and institutions. From conventional concerts in rock clubs to new genres such as the flash mob, the forms and meanings of musical performance are deeply affected by urban social change and at the same time respond to the changing conditions....