ANS	Autonomic Nervous System
CDR	Clinical Dementia Rating scale
CHU	Care Home Unit
GMT	Group Music Therapy
HC	Hair Cortisol
HPA-axis	Hypothalamus–Pituitary–Adrenal axis
IC	Informed Consent
ICD-10	International Classification of Diseases and Related Health Problems
MADRS	Montgomery–Åsberg Depression Rating Scale
MIDDEL	Music Interventions for Dementia and Depression in ELderly care
MMSE	Mini Mental State Examination
PSS-10	Perceived Stress Scale (10 items)
RCS	Recreational Choir Singing
SC	Salivary Cortisol
SAA	Salivary Alpha-Amylase
SOP	Standard Operating Procedures
VAS stress	Visual Analogue Scale stress