Four jolly men sat down to play, they played all night ..................Now that you've heard, can you explain?

Question

Four jolly men sat down to play, they played all night until the break of day.
They played for cash and not for fun, with a separate score for every one.
When it came time to square accounts, they all made quite fair amounts.
Not one lost and all gained.
Now that you've heard, can you explain?

Answer 1

They played for a band and they got paid for it