Toccata (from the Symphony No. 5) by Charles-Marie Widor (1844 – 1937)

The most famous french organ music - played at many royal weddings, including Prince William, Duke of Cambridge and Catherine Middleton on 29 April 2011 at Westminster Abbey.

N.B. This requires a large organ in a big church to be effective - it may be playable in small country churches, but isn't recommended.