This work investigates the liturgical and musical requirements for a contemporary setting of the traditional Anglican evening canticles. William Mathias, a prominent 20th-century Welsh composer, utilizes his signature rhythmic vitality and harmonic language to reinterpret the ancient texts of the Magnificat and Nunc Dimittis. The composition serves as a formal contribution to the repertoire of cathedral music, balancing traditional ecclesiastical structure with modern compositional techniques.

Musicologists and choral directors frequently cite this service as a standard example of post-war Anglican liturgical composition. Experts highlight the work for its technical accessibility combined with the distinct, energetic style that defines the composer's broader body of work.