ATTENTION EDITORS - EMBARGO, RELEASABLE TUESDAY 29 MARCH AT 0001 GMT - THIS RESTRICTION APPLIES TO ALL MEDIA, INCLUDING WEBSITES  Palace Steward Nigel McEvoy, walks through the Music Room, which will be used during the wedding reception of Prince William and Kate Middleton, at Buckingham Palace in London on March 25, 2011. The second-in-line to the throne marries his university sweetheart on April 29 at Westminster Abbey, in an event that has become a global media sensation ever since they announced their engagement last November.AFP PHOTO/WPA POOL/Nick Ansell (Photo credit should read Nick Ansell/AFP/Getty Images)