Book excerpt: Music is an accumulation of mediators: instruments, languages, sheets, performers, scenes, media and so on. Learning from music - this art of infinite mediations - allows us to confront sociology with a different way of considering objects. For this task, Hennion draws on aesthetics, art history, science, technology and popular music studies. He shows us that music is a collective process, which must always be performed again and again. As part of that project, he presents a wide-ranging series of case studies, restoring attention to the rich and varied intermediaries through which music is brought to life. This is the first English translation of one of the most important works of French scholarship on music and society.