This is the 4th printing of this book first published in 1977 with the title "Tuning of the World." A signed hard cover copy of the 1977 publication is held by the Sackner Archive. Schafer contends that we suffer from an overabundance of acoustic information and explores ways to restore our ability to hear the nuances of sounds around us. -- Source of annotation: Marvin or Ruth Sackner.