Conversation so far:
When was God Save the Queen first used in the UK?
An Army Order was duly issued in 1933, which laid down regulations for tempo, dynamics and orchestration.
On what occasions is God Save the Queen used in the UK?
God Save the Queen is at played at traditional events like Wimbledon, Royal Variety Performance, the Edinburgh Tattoo, Royal Ascot, Henley Royal Regatta and The Proms, and more.

Question: At which events is this anthem played in the UK?
Self-contained rewrite: At which events is God Save the Queen played in the UK?