Katie Derham is live at the world's biggest classical music festival as the legendary Cleveland Orchestra perform at the BBC Proms. This is a rare chance to hear one of America's best orchestras in a huge Proms favourite, Brahms's First Symphony. The concert opens with Brahms in a lighter mood in his Academic Festival Overture and also includes the UK premiere of an elegant, dance-like flute concerto by German clarinettist and composer Jorg Widmann.