This volume investigates the historical origins, musical development, and cultural significance of the traditional carol within the context of Christian liturgy and folk practice. Percy Dearmer, a prominent theologian and liturgist, collaborated with Ralph Vaughan Williams and Martin Shaw to curate a collection that prioritizes historical authenticity and musical integrity. The text argues that carols represent a unique intersection of popular song and religious observance, requiring a scholarly approach to preserve their original intent and melodic structure.

Musicologists and church musicians frequently cite this work as a foundational reference for the study of traditional carols. Readers often note the academic rigor of the editorial notes, which provide significant context for the development of each included piece.