"I've been spending an awful lot of time in dressing rooms the last six months working on this and trying to imagine [it]," Greenwood says. "That's why I turned up with three quarters of it on paper already, because I'd rather make a lot of mistakes and edit away rather than work with a skeleton and add to it."

It is not Greenwood's debut working in the symphonic sphere. He served as a composer-in-residence with the BBC Concert Orchestra in 2004-'05. The Australian Chamber Orchestra previously played his orchestral work Popcorn Superhet Receiver back in 2010.