At the heart of the exhibition are two deceased artists, Issa Samb and Beverly Buchanan , whose ways of thinking animate “In Minor Keys,” with multiple galleries, called “Shrines,” in the Central Pavilion dedicated to their work. In one section, we see a translation of Samb’s La Cour ( The Yard ), his “permanent and ever-evolving installation of a courtyard-home-studio,” which Kouoh picked as the most influential work of the 2010s; a video by Adrienne Edwards, projected over some of his sculptures, gives life to this. Most impressive here is the love and care given to Buchanan and her expansive practice.…