The power of music in everyday life is widely recognized and this is reflected in social theory from Plato to Adorno that portrays music as an influence on character, social structure and action. This book uses a series of ethnographic studies and in-depth interviews to show how music is a constitutive feature of human agency. Drawing together concepts from psychology, sociology and sociolinguistics it develops a theory of music's active role in the construction of social life and highlights the aesthetic dimension of social order and organization in modern societies.