The highly acclaimed Rock Festival Choir (Alnwicks a cappella Chamber Choir) under its director Peter Brown come to the Fringe for the first time to sing Rachmaninoff's wonderfully rich All-Night Vigil (more commonly known as the Vespers) in the fantastic acoustic of two of Edinburgh's oldest kirks " Greyfriars and Canongate. At the end of a hectic day at the festival, Rachmaninov is a perfect way to reflect and unwind!