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Sir Neville Marriner, 90, to conduct at the Proms

8 August 2014 Last updated at 19:25 BST

When Sir Neville Marriner takes to the stage at the Royal Albert Hall in London he will become the oldest conductor ever to lead a Prom.

Ninety-year-old Sir Neville began his musical career as a violinist before founding his own orchestra and then picking up a baton.

Arts Editor Will Gompertz went along to rehearsal to meet one of the most recorded conductors of all time.