Jenny Abramsky, director of audio and music for the BBC, is leaving the Corporation this summer after nearly 40 years' service.
Abramsky will take up the role as chair of the Heritage Lottery Fund, which distributes U.K. lottery cash to worthwhile causes.
Since November 2006, her duties have includes responsibilities for TV music entertainment, and all audio across the state-funded broadcaster.
Commenting on her departure, BBC director general Mark Thompson, said Abramsky "leaves BBC radio in remarkable health."
As director of radio she launched five digital radio services, and in recent years has spearheaded a number of music initiatives, including the launch of the Electric Proms live event.
She also had responsibilities for the three BBC orchestras in England: the BBC Proms, Classical Music & Performance Television and Radio Resources.
In January 2001, she was rewarded for her services to radio with a CBE.