Even when a performance has not yet taken place, when Marvin Gaye Chetwynd has not conducted some Walpurgisnacht in the gallery, when no one has been chained to a latex double of Jabba the Hutt or done a banshee dance half-naked or otherwise worked themselves up into a transformative, ecstatic frenzy—even when the surfaces are innocent of blood or sperm or body paint—her artworks still reverberate with arcane energy. In “The Stagnant Pool,” in which she converted a single room into a stage set for a potential performance, Chetwynd showed off her ability to animate her work through her