If you were surprised by Daft Punk’s TRON Legacy soundtrack or The Knife’s recent forays into opera you’d better sit down: the Pet Shop Boys are now doing ballet. But if your mind is already being terrorised by visions of Neil Tenant in a tutu, or of Chris Lowe pirouetting around his keyboard, fear not – they’ve left the acrobatics to the professionals of Sadler’s Wells and focused instead on scoring the appropriately-titled The Most Incredible Thing. Mixing electronic music with orchestral sounds, it serves as another reminder that by now we ought to have learned to expect the unexpected from Britain’s foremost synth-pop pioneers.