The Shelburne Museum knows how to present snazzy, modern exhibitions, but it never disappoints textile geeks. “Pieced Traditions: Jean Lovell Collects,” now on view in the Hat & Fragrance Gallery, features select historic bedcovers from the California collector, who is a longtime friend of the institution. Whether or not you’re up on 19th-century Amish quilting techniques, these works will capture your attention with their color and eye-catching geometries.