Climate change, the surrealistic vision of a person getting in touch with nature thru music. The city represents today´s society eating away their environment. The phone represents artificial way of communication between humans and their environment.
There are many contradictory theories about the Pied Piper.. Some suggest he was a symbol of hope to the people of Hamelin, which had been attacked by plague; he drove the rats from Hamelin, saving the people from the epidemic.