I have music, but no ears. I have a merry song, but no voice. I possess a herd of horses, but they never eat. They run all day, but never move their feet. I am always spinning, yet I stay in one place. I am a carnival classic. What am I?

I'm typically quite welcoming, I don't understand why everyone walks all over me...

Not sure why they thought this formed the moon, Unless it can’t digest, and the tides coming soon.

I'm round with nothing inside I come in gold or plain you start your mornings with me and I'm better with a spread

You earn me slow, then spend me fast, you try your best to make me last. I buy you things both big and small, yet wages never seem enough at all.