Direct and indirect effects between Condition (Singing versus Non-singing adult education classes) and change in (A) Physical Health, (B) Anxiety/GAD7 and (C) Flourishing scores between timepoints 1 and 3, mediated by change in Inclusion of Other in Self (IOS: collective-bonding) score, and controlling for baseline (timepoint 1) measures, giving the relationship coefficients. Direct effects are partial relationships controlling for the other variables. Any significant associations are indicated as * p< 0.05 (two-tailed). Post-hoc analysis revealed that these three measures were significantly predicted by IOS at timepoint 3 independently of the corresponding baselines, as reflected in the significant direct relationship between change in IOS and the changes in Physical Health, GAD7 and Flourishing illustrated here.