1. Faculty of Medicine, University of Porto (FMUP) , 4200-319 Porto, Portugal
2. Center for Health Technology and Services Research (CINTESIS) and Associate Laboratory—Health Research Network (CINTESIS@RISE) , 4200-450 Porto, Portugal
3. Chronic Pain Unit and Physical and Rehabilitation Medicine Department, Centro Hospitalar Universitário do Porto, Instituto de Ciências Biomédicas Abel Salazar—Universidade do Porto , 4099-001 Porto, Portugal
4. International Center of Arts Medicine , 4460-188 Porto, Portugal
5. Institute of Music Physiology and Musician’s Medicine, University of Music, Drama, and Media , 30175 Hannover, Germany
6. Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS) at FMUP , 4200-319 Porto, Portugal