1. Aarhus University & The Royal Academy of Music Aarhus/Aalborg; Center for Music in the Brain, Department of Clinical Medicine; Nørrebrogade 44 Building 10G Aarhus Jylland Denmark 8000
2. The Ohio State University; Department of Psychology; 175 Psychology Building 1835 Neil Avenue Columbus Ohio USA 43210
3. Department of Clinical Neurophysiology, Glostrup Hospital; Danish Centre of Sleep Medicine; Glostrup Denmark DK-2600