Artistic flavor is permanently changing and there's clearly no such thing as a balanced view from the arts, in which private judgment and taste are the sole currencies. And so designs come and go, bodies of work pass in and out of favour. The functions of JS Bach were abandoned before restored a century by Mendelssohn. Shakespeare was derided as dumb and hard. Along with a Dutch woman named Frans Hals thankfully didn't see a century after his death, his functions changing hands for nothing. And,...