Nicholas Hytner appears to be reinventing London’s National Theatre. And doing it quickly. Along with cutting ticket prices, he’s trying to expand the National’s tastes. His “particular hope is that by exploring ‘the gaps between what we now call ‘dance’, ‘plays’ and ‘operas’,’ the National can redefine musical drama. ‘Somewhere along the line, “musical” became a dirty word – I want to clean it up’.”