Abstract
Published in 1977, The tuning of the world by Raymond Murray Schafer, inaugu-rated the soundscape studies, that have shaped much further research, interweav-ing different disciplinary fields, and are based around the concept of sound as a meta-category that both encompasses and transcends music. These studies invite us to reflect on the relationship between human beings and sound environment, on the responsibility of each individual in sharing the soundscape as a common and collective heritage and, more generally, on the ability to exercise hearing as a medium of understanding of the world.