There has been an extraordinary amount of interest in sound spatialisation in recent years. The volume of work in this area has pushed many international organisations to feature sound spatialisation as a theme for conferences and publications, and Organised Sound is probably overdue in having a thematic issue based upon aspects of sound in space. This issue of Organised Sound contains many different views of space. We have included articles about spatialisation techniques, our understanding of sound spatialisation, composition, performance and spaces inside music as well as the spaces and environments where music can exist, including virtual spaces.