Some great links to research papers by Constanza Preti et al at this link here.
http://imerc.academia.edu/CostanzaPreti
‘Costanza Preti, PhD, is a Research Associate at the International Music Education Research Centre (iMerc), Institute of Education, University of London. Her primary research is in music and health and includes a major study examining the impact of live music programmes in paediatric hospitals. Costanza has been awarded a Wingate scholarship and her research has been funded by the UK Economic and Social Research Council (ESRC). She has worked on a number of funded projects including: The evaluation of the ‘Progetto Musica in Emilia-Romagna’, funded by the MIUR (Italian Ministry of Education); Evaluation of the Sing Up National Singing Programme (DfES); Research evaluation of Soundabout a charity specialized in musical provisions for special needs children; Evaluation of Voices Foundation Primer (DfES). She has been editorial assistant and reviews editor for Psychology of Music (Sage)’