This installation of 25 works by James Lee Byars stressed a little-acknowledged effect of his work: frustration. Ordinarily, this discomfiture is the result of our inability to crack the code of Byars’ art, or perhaps of our being unable to decide whether it has any meaning except as evidence of his careerism. Here Byars fueled those quandaries by ruling out close inspection of his work. All the objects on view were corralled within a circle of gold leaf applied to the floor, a level down from the museum’s entrance. (An identical solid circle of gold—this one void of objects—was applied to the