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.

This quote is saying that music has a beauty that is both cruel and freeing. Music can make you think of things like loneliness or pain, strength or freedom. At the same time, music can also represent disappointment and unfulfilled love, as well as the monotony of nature. The beauty of music is both heartbreaking and empowering, as it can evoke strong emotions and bring comfort and solace.