1. Institute of Musicians' Medicine; Freiburg University Medical Center; Freiburg Germany
2. Division of Radiology; Department of Medical Physics; Freiburg University Medical Center; Freiburg Germany
3. Laboratory of Bio-Acoustics, Department of Cognitive Biology; University of Vienna; Vienna Austria
4. Division of Phoniatrics and Pediatric Audiology; Department of Otorhinolaryngology-Head & Neck Surgery; University Hospital Erlangen Medical School; Erlangen Germany