The musical instruments of East and Southeast Asia enjoy increasing recognition as parts of humanity’s intangible cultural heritage. Helen Rees edits a collection that offers vibrant new ways to link these objects to their materials of manufacture, the surrounding environment, the social networks they form and help sustain, and the wider ethnic or national imagination. Rees organizes the essays to reflect three angles of inquiry. The first section explores the characteristics and social roles of various categories of instruments, including the koto and an extinct Balinese wooden clapper. In section two, essayists focus on the life stories of individual instruments ranging from an heirloom Chinese qin to end-blown flutes in rural western Mongolia. Essays in the third section examine the ethics and other issues that surround instrument collections, but also show how collecting is a dynamic process that transforms an instrument’s habitat and social roles.