“‘Das Lila Lied,’” Bertie said. “The anthem of our community. Do you recognize it?” He shook his head. “We have a song?” Sofie could not help smiling at the memory. “Oh yes. We loved it. We sang it at every party, every burlesque, wherever we could get away with it. Kurt Schwabach and Mischa Spoliansky created it in honor of Dr. Magnus Hirschfeld.