De l’Etoile SK. Infant-directed singing: a theory for clinical intervention. Music Therapy Perspectives.2006; 24:22–29.
This literature review substantiates the therapeutic potential of infant-directed singing, particularly for at-risk mother/infant pairs, emphasizing its positive impact on enhancing parent-infant relationships. The findings suggest that incorporating singing into interactions between at-risk mothers and infants may offer therapeutic benefits, contributing to the overall well-being of both parties. The recognition of singing as a potentially valuable tool in supporting and strengthening these relationships underscores its significance in interventions aimed at fostering positive outcomes for vulnerable parent-infant pairs. As a result, these insights may guide the development of targeted interventions or programs that leverage the therapeutic qualities of infant-directed singing to promote healthier and more resilient connections within at-risk populations.

Nakata T, Trehub SE. Infants’ responsiveness to maternal speech and singing. Infant Behavior and Development. 2004; 27: 455–456.
The study highlights that the stereotypical and repetitive nature of maternal singing can foster moderate arousal levels in infants, sustaining their attention. This stands in contrast to the more variable nature of speech, which may lead to cycles of heightened arousal, gaze aversion, and re-engagement. The findings suggest that the predictable rhythm of maternal singing contributes to improved parent-infant relationships. Additionally, the regular pulse of music is identified as a factor that enhances emotional coordination between mothers and infants. Recognizing the impact of maternal singing on arousal levels and emotional synchronization underscores the potential benefits of incorporating music into early parent-infant interactions, fostering a more harmonious and engaging environment for the crucial development of parent-child bonds.