This week's service includes settings of the Magnificat and Nunc Dimittis by William Mathias (Jesus College Service), Preces and Responses by Kenneth Leighton, God Be In My Head by Peter Horton, and As Truly as God Is Our Father by William Mathias. Sung at the close of day in cathedrals and churches throughout the world, Choral Evensong is a service of Evening Prayer, derived from the ancient offices of Vespers and Compline. The choir sings the traditional evening prayers of the church that have been offered for centuries, while the congregation listens, joins in the hymns, and adds their own prayers to those of the choir. It is an opportunity for peaceful meditation before the start of a busy week.