Sometimes known as the 'Advent Carol Service', this service is actually a moving sequence of readings, hymns, anthems, and motets, exploring the themes of Advent - darkness and light, ending and beginning, hope, and justice.
The service is based around the seven ancient Advent Magnificat antiphons, known as the 'O' Antiphons, which form the basis of the well-known hymn 'O come, O come, Emmanuel'