“One major subset of modernist art is known for clean lines, elementary forms and pristine surfaces. Everything indirect, inessential and, above all, historical has been stripped away. But there’s a charm to well-used old things, with their patinas, blemishes and hidden strata. Such aspects can be emulated, and even simulated. Three local artists — Cianne Fragione, Julie Wolfe and Khanh H. Le — are doing that in various ways in current shows.”