Fidelio, Royal Opera review - fitfully vivid singing in a dramatic void
Davidsen and Kaufmann don't disappoint, but Beethoven's music-theatre goes for nothing
Emblazoned on a drop-curtain in front of a mirror-image of the auditorium, the three great tenets of the French revolution seem to be mocking us right at the start, above all the second of them: equality, really, given the make-up of the Royal Opera stalls?