The artists of the Fluxus art movement of the ’60s and ’70s didn’t consider it a movement. They resisted labels, despite the difficulties of explaining “Neo-Dada noise music” without said labels. This traveling exhibition features a historical horde of conceptual Fluxus artifacts. It all begs the question: If you peel off the “God” label from that bottle of God, is “He” still in there? “Fluxus and the Essential Questions of Life,” Apr 16 – Aug 7, Hood Museum, Hanover, NH