By Michael H. Thaut (Faculty of Music, University of Toronto, Faculty of Music, Director, Music and Health Research Collaboratory MaHRC), Volker Hoemberg (St Mauritius Klinik Meerbusch, Germany)
By Robert H. Woody (Steinhart Foundation Distinguished Professor of Music, Steinhart Foundation Distinguished Professor of Music, University of Nebraska - Lincoln)
By June Tillman
By Mady Schutzman, Jan Cohen-Cruz
By Augusto Boal