Jennifer played the Lark Ascending by Vaughan Williams during the special Commemoration Vigil marking the centenary of the outbreak of the First World War. The service, attended by Her Royal Highness the Duchess of Cornwall and senior politicians, was held at 10pm on Monday 4 August, broadcast live from Westminster Abbey on BBC TWO. She was accompanied by organist Daniel Cook. Download the [order of service](http://www.westminster-abbey.org/__data/assets/pdf_file/0005/83282/30577_WWI_Service_web_final.pdf).