Answer:
When I live I cry, If you don't kill me I'll die.
It's equally comfortable in an orchestra and a geometry textbook. What is it?
What is that you will break everytime you name it?
What has 4 legs in the morning, 2 legs in the evening and 3 legs in the night?
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
I can only be played on a windy day