“When I stand in front of a canvas,” said the Spanish painter, sculptor, and ceramicist Joan Miró, “I never know what I’m going to do—and nobody is more surprised than I at what comes out.” Miró maintained that sense of surprise his entire life, pursuing a path amid floating forms that was never easy to categorize. In an exhibition that highlights the diversity of his oeuvre, an intimate walkthrough takes viewers from a small figurative painting of 1931, to paintings, sculptures, and drawings, and then culminates with a series of engravings executed 50 years later. —E.C.