LitCharts assigns a color and icon to each theme in Jerusalem, which you can use to track the themes throughout the work.
Lies and Myths
The Destruction of the Natural World
Authority
The Individual vs. Community
Summary
Analysis
Phaedra appears dressed up like a fairy and sings a song called “Werewolf” by Barry Dransfield. The song urges the listener to have sympathy for the werewolf, who loves the maidens he attacks, even though he kills them.
Again, Phaedra appears, but only for the audience to see. Her repeated presence suggests she is a central figure in the play, but the reason why remains opaque.