Livia and Fr Theo propose you to work on this tale:
Some fishermen found a mermaid in their net. The mermaid asked to be set free and promised to realize the fishermen's wishes:
the first asked for (money)
the second for (power)
the last one, the wise one,asked to become able to understand animals' languages.
Listening to the animals he understood how important is the environment for our lives.
Each school can choose what to ask to the mermaid, every "wish" can be a song, other musics and songs can be necessary in other moments of the tale....
Let's know your ideas (the Primary schools can be interested to sing "animals' voices song" because children usually LOVE animals and copy their walks and voices)