Answer:
Creatures of power, creatures of grade, creatures of beauty, creatures of strength. As for their lives, they set everything's pace. For all things must come to live. Under their emerald embrace Either in their life or in their death.
A red drum which sounds without being touched, and grows silent, when it is touched.
What goes around the world and stays in a corner?
What can be measured but not seen?
In the forest, this blends in just right, but every December it is covered with lights. What is it?
I can only be played on a windy day