Answer:
What has a mouth but can't chew?
My second is performed by my first, and it is thought a thief by the marks of my whole might be caught.
My voice is tender, my waist is slender and I'm often invited to play. Yet wherever I go, I must take my bow or else I have nothing to say.
What has a bottom right at the top?
I have legs but walk not, a strong back but work not. Two good arms but reach not. A seat but sit and tarry not.
I can only be played on a windy day