The Public Theater presents the new experimental work by Christian De Gré Cárdenas,”LUCINE! or birdshit: a human concerto with string & void.” While not an operetta in the traditional sense, “LUCINE!” draws on operatic logic, musical structure, and character-driven theatricality. Bethany Geraghty and Eric Eaton perform in the work scored for voice and cello. Gama Valle directs. De Gré Cárdenas, {…}