The phrase identifies a specific song title coupled with the performing artists and a descriptor of its textual component. The phrase refers to a folk song popularized by the American folk group Peter, Paul and Mary, and to the written words that comprise the song. The song itself is a lullaby, often used to soothe and comfort.
This specific combination serves as a strong identifier. It allows individuals searching for the song to quickly locate the correct version and lyrics. Its historical context places the song within the American folk music revival of the 1960s, and links it to the social and cultural influences of that era.
