BBC
Radio stations, especially big ones like the BBC's national pop network Radio 1, are prepared for bad stuff happening: it's called 'obit procedure'. When a catastrophic news story breaks, such as the death of a royal family member, each network has an audience-appropriate mix of obituary music on standby that will 'reflect the mood of the nation'.
About BBC
The BBC (British Broadcasting Corporation) is a British public service broadcasting organisation. It was founded in 1922, and in 1936 launched the world's first regular high definition television service. It operates under Royal Charter in a licence agreement with the UK government, and receives money from the licence fee which is supplemented by the commercial activities of BBC Worldwide. The BBC operates several television channels, including the flagship BBC One and Two channels, as well as radio stations serving the whole of the UK and its different regions.