In the context of a clinical trial, the investigators will evaluate if parent-infant interaction can be improved by a family integrated, individualised, interactive resource- and needs-oriented music therapy approach in the dyads of infants with congenital heart disease and their parents. This intervention will be compared with the standard of care. Infants allocated to the control group will receive standard care during admission. Standard care includes involvement of a multi-professional team consisting of medical and nursing team, psychologists/psychiatrists, social workers, breastfeeding counsellor, speech therapist, nutritional counsellor and physiotherapists.