Inclusion Criteria:  Women aged 18 or older Satisfactory understanding of English Women who have a child between 0 and up to 9 months old Women with postnatal depression diagnosed using symptoms of PND at a minimum score of 10 on the Edinburgh Postnatal Depression Scale (EPDS) AND meeting diagnostic criteria for major depressive episode on the Structured Clinical Interview for DSM-IV Disorders (SCID) Access to an internet-connected device (mobile phone, tablet, computer or laptop) to allow completion of assessments and participation in the singing sessions.  Exclusion Criteria:  Child outside of the age-range specified Unable to give informed consent