“I am Khumn!” These were the first words ever spoken on stage by baritone Michael Hewitt. The phrase is one you might expect from the Narrator in “Akhnaten” but not in a fifth-grade educational history play about ancient Egypt. According to Hewitt, his entrance was dramatic and well-received. He recounted striding to center stage, dressed from head-to-toe in black and shrouded in dense fog. {…}