Harmonia Sacra was formed by Peter Leech in the Summer of 2009. On Advent Sunday in the same year they presented their first concert at the church of St Thomas the Martyr in Bristol, entitled Advent Reflections. The event has since become a permanent and popular musical feature of the pre-Christmas season in that city. 2019 therefore marks the choir's 10th anniversary, so this new release has been created to celebrate a decade of choral music-making in South-West England (and much further afield), and to represent the diverse repertoire of Advent Reflections concerts.