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Stockhausen helicopter opera gets UK premiere

17 August 2012 Last updated at 23:20 BST

Karlheinz Stockhausen's five-hour opera Mittwoch Aus Licht is to premiere in Birmingham

The performance is part of the London 2012 Festival at the Argyle Works, a former chemical plant near Birmingham city centre.

The opera includes performances by a string quartet flying in helicopters.

Will Gompertz reports