Richard Wagner's Die Meistersinger has always called forth superlatives from those who have fallen under its spell. Toscanini wanted to lay his baton down for the last time only after he had conducted a performance of it. Paderewski called it 'the greatest work of genius ever achieved by any artist in any field of human endeavour.' H.L. Mencken declared, 'It took more skill to plan and write it than it took to plan and write the whole canon of Shakespeare.'

And yet Wagner's many-splendoured comedy has come under severe criticism in recent years for what has been called its...