I have already said that a thing which 'exists in a person's head' and nowhere else is alternatively called an imaginary thing. The actual making of the tune is therefore alternatively called the making of an imaginary tune. This is a case of creation, just as much as the making of a plan or a disturbance, and for the same reasons, which it would be tedious to repeat. Hence the making of a tune is an instance of imaginative creation. The same applies to the making of a poem, or a picture, or any other work of art.