“…These studies utilized pain questionnaires, which asked the degrees of pain interference in a numerical scale: for example, “Mark the box beside the number that describes how, during the past 24 hr, pain has interfered with your general activity, normal work, etc.," (BPI). Pain interference decreased from pre‐ to post‐singing intervention in studies with chronic pain patients (Bradt, ), people with Parkinson's (Stegemoeller, ), people with COPD (Morrison et al, ) and people with irritable bowel syndrome (IBS) (Grape et al, ); however, the decrease was only significant in Bradt et al () . Four RCTs yield mixed results: Bradt et al () and Grape et al () studies, rated as of less than good quality, reported findings that “significantly favours intervention,” whereas Pongan et al () findings “significantly favours control” and Kenny's () had a “trend towards control.” Pongan's study () was appraised to be of good quality, whereas Kenny's study () had a number of weaknesses, such as a high attrition rate (only 31% of singing group participants completed the 3‐week long singing programme) and not reporting missing data.…”