New Order's Blue Monday was released on 7 March 1983, and its cutting-edge electronic groove changed pop music forever. But what would it have sounded like if it had been made 50 years earlier? In a special film, using only instruments available in the 1930s - from the theremin and musical saw to the harmonium and prepared piano - the mysterious Orkestra Obsolete present this classic track as you've never heard it before.
