Fans of Isaiah Berlin will be well aware that the creative world breaks down into foxes and hedgehogs. Those of you who bound through this world with a foxlike approach will doubtlessly adore the upcoming YARN festival, which offers us yet another chance to get multi-disciplinary. Or to lazily assemble the rest of this post by hacking about their press release… YARN is a brand new festival celebrating story and storytelling – showcasing film, theatre, music and literature and providing…