I haven’t been to the Morgan Library much since the new (now not-so-new) extension by Renzo Piano opened a few years ago.   At the time, I was slightly disappointed by it as compared to the glories of Piano’s work in Paris and Houston and equally to the robust classicism of the original J.P. Morgan interiors.   But I can now see that it was probably necessary to open up the building to better and light-filled public access.   I had forgotten how splendid the actual library interior is, which I first visited in 1976 with Lincoln Kirstein: