Unit for Sound Practice Research The Unit for Sound Practice Research (SPR) is a research group that integrates and advances the innovative activities of EMS composers and researchers. Sections About us Sound Practice Research (SPR) is a research group that integrates and advances the innovative activities of EMS composers and researchers. People Meet the researchers involved with the Unit for Sound Practice Research. Publications Read about the work carried out by researchers from within the Unit for Sound Practice Research. Blog Read more about the Unit for Sound Practice Research on the blog. Container Department The Unit for Sound Practice Research sits within the Department of Music. Contact us Please send enquiries to the Department of Music.