The three-year-old who lies about taking a cookie isn't really a liar after all. He simply can't control his impulses. He then convinces himself of a new truth and eager for your approval reports the version that he knows will make you happy.
It is cruel you know that music should be so beautiful. It has the beauty of loneliness of pain: of strength and freedom. The beauty of disappointment and never-satisfied love. The cruel beauty of nature and everlasting beauty of monotony.