One day, Beethoven came to a restaurant for dinner. After ordering food, he was suddenly inspired, so he grabbed the menu on the dining table and made a song on the back of the menu. After a while, he was completely immersed in the beautiful melody. The waiter didn't dare to disturb him and planned to serve later. About an hour later, the waiter finally came to Beethoven's side: "Sir, are you ready to serve?" Beethoven paid the bill as if he had just woken up from a dream. The waiter said, "Sir, you haven't eaten yet!" " ""no! I'm sure I've eaten. " Beethoven didn't listen to the waiter's repeated explanations at all. After paying the price on the menu, he grabbed the menu full of notes and rushed out of the restaurant.