Members of the 100-strong orchestra said they could only contemplate playing the piece wearing headphones, after several suffered buzzing in the ears for hours after rehearsals. The 20-minute composition starts with the rattle of machine-gun fire and gets louder.
In his defense, the composer claims his work is "no louder than anything by Shostakovich or Wagner". Machine guns? I am not sure I'm buyin' that.
More background on EU regulations governing sound levels and the challenge it poses for the modern orchestra can be found here.