Answer:
I can only be played on a windy day. What am I?
I am a box who holds keys but not locks. With the right combination I may unlock your soul
You bind me and I walk. You loosen me and I stop. What am I?
I can be cracked, made, told, and played. What am I?
When you buy me I am costly, but the only use I have is hanging only. What am I?
My days are numbered. What am I?