Playing the piano is a sentence in a bad mood.

1. When you play the piano in a bad mood, the piano sounds like a butterfly flapping its wings to take off. I also feel that the distant sky is shining with pure and charming light. When I play the piano upstairs, I will dance on the keys like a lovely elf, and the pop-up sound will be like spring water. When I am in a good mood, the tone of the piano will blend with me. When you are in a bad mood, the timbre of the piano is simply noisy. I play the piano today. 2. Tap the keys with your fingers and make a deep sound. The cat woke up from sleep and the sparrow flew away outside the window. I've been poaching upstairs, as if I'm going against the sky, preventing me from playing the piano. 3. The tone on the strings is like a demon, and the sound of the piano sounds like a group of demons dancing, which makes people's ears want to resist, and the sound of the piano seems to satirize me.