1. Cognitive Brain Research Unit, Music, Aging and Rehabilitation Team, Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
2. Department of Psychology and Logopedics, University of Helsinki, Helsinki, Finland
3. Espoo Hospital, Espoo, Finland
4. Musiikkiterapiaosuuskunta InstruMental (music therapy cooperative InstruMental), Helsinki, Finland
5. Private entrepreneur, Espoo, Finland
6. Dialogic Partner Oy, Espoo, Finland
7. Ludus Oy Tutkimus- ja kuntoutuspalvelut (Assessment and intervention services), Helsinki, Finland
8. Neurology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
9. Department of Psychology, Åbo Akademi University, Helsinki, Finland
10. Tampere University Hospital, Tampere, Finland
11. Validia Rehabilitation Helsinki, Helsinki, Finland
12. Concussion Care Centre of Virginia, Ltd., and Tree of Life, Richmond, VA, USA
13. Department of Physical and Rehabilitation Medicine, Helsinki University Hospital, Helsinki, Finland
14. Department of Physical and Rehabilitation Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland