Katie Carmichael, soprano Caitlin MacKenzie, mezzo-soprano Euan McDonald, tenor Joshua McCullough, bass This brilliant young vocal quartet from the Royal Conservatoire of Scotland offer a wonderful mix of a cappella music ranging from madrigal to motet and from carol to contemporary and Scots Song. Tickets & Information: advance (until 12 noon on the day) £13.50 (inc £2.50 booking fee per ticket); After 12 noon on day of concert: £15 (inc £2.50 booking fee per ticket); 18 and unders go FREE (under 16s to be accompanied by an adult) Add soup and a sandwich for just £7 (book before 12 noon on the Friday before the performance)