Lullaby

A lullaby, or cradle song, is a soothing song sung to infants and young children to quiet them and help them fall asleep. Lullabies typically use simple melodies, gentle rhythms, and repetitive or rhyming lyrics. The singer’s voice is usually soft and steady, and the tempo is slow. Beyond sleep, lullabies can reassure a child, reinforce caregiver bonding, and mark a predictable bedtime routine.

Etymology and scope: The word lullaby appeared in English in the 18th century, but lull songs are found in many languages and cultures long before. Content often reflects family life, safety, and wishes for well-being, using lull or hush phrases. Notable examples include Brahms’s Wiegenlied (Lullaby) and traditional tunes such as Rock-a-bye Baby.

Musical and psychological aspects: Lullabies tend to have predictable structure, gentle cadences, and rhymes that aid memory and attention. Research indicates singing can slow breathing and heart rate, promote calm, and strengthen caregiver–child bonding through vocal interaction and touch.

Modern usage: Lullabies persist in families and education, and have influenced recorded music and therapy. They vary across cultures but share aims of soothing and securing the child’s sleep.