BBC Philharmonic debut Manchester's mood music
5 January 2012 Last updated at 21:39 GMT
The BBC Philharmonic Orchestra have debuted a composition by the BBC Young Composer of the Year.
The work was based on a mood experiment in Manchester in which 20,000 people were tested for the Great Manchester Health Experiment.
That information was then given to composer Jack Sheen who used it to create a piece for the orchestra.