does the abbey have a museum?
Yes, the Westminster Abbey Museum
Westminster Abbey
The Westminster Abbey Museum was located in the 11th-century vaulted undercroft beneath the former monks' dormitory in Westminster Abbey.
when did arthur sullivan start his military service? April 1918 was he a part of any coronation? Yes, the coronation of King George VI where did it take place? London when did this event develop? 973 AD how does it relate to the monarch? The British monarch is formally invested with regalia and crowned at Westminster Abbey. who does the crowning? The Archbishop of Canterbury does the sovereign wear any special headwear? UNANSWERABLE
wiki:11640801
Westminster Abbey [SEP] Museum
The Westminster Abbey Museum was located in the 11th-century vaulted undercroft beneath the former monks' dormitory in Westminster Abbey. This was one of the oldest areas of the abbey, dating back almost to the foundation of the church by Edward the Confessor in 1065. This space had been used as a museum since 1908 but was closed to the public in June 2018, when it was replaced as a museum by the Queen's Diamond Jubilee Galleries, high up in the Abbey triforium.