Photo: © Glyndebourne Productions Ltd. Photo: Tristram Kenton Normally, ‘heritage’ productions make me nervous. The established stagings summon to mind lumbering Zeffirelli-esque spectacles and unwieldy, moth-eaten costumes. Opera houses resting on their artistic laurels, unwilling take artistic risks. The ingrained conservatism in the opera business that could even prove fatal for the art form.  But, Peter Hall’s production of Benjamin {…}