Katherine Dienes also known as Katherine Dienes-Williams (born in Wellington, 10 January 1970)[1] is a New Zealand-born organist, conductor and composer. She is currently Organist and Master of the Choristers at Guildford Cathedral[2] and is the first woman to hold the most senior musical post in a Church of England cathedral. Her husband is Patrick Williams, librarian of the Royal Philharmonic Orchestra, and they have a daughter, Hannah, who sang as a chorister at Guildford Cathedral .