BBC Four will air a 90-minute documentary on Sunday, December 11 (9.30pm GMT), following the quest to build an orchestra of 44 instruments entirely from scrap in 11 weeks. Conductor Charles Hazlewood challenged top instrument makers from around the UK with the task of turning broken furniture and the contents of road-side skips into musical instruments. Hazlewood and the BBC Concert Orchestra performed Tchaikovsky's 1812 Overture on the scrap instruments at this year's BBC Proms. You can see photographs and learn more about the documentary by launching the gallery view - simply click the first image below.