This clip is commonly shared online as a sad piano meme and is often associated with the emotional scene from Up. On short-form video platforms and meme soundboards, it spread as an easy way to signal sudden sadness, regret or sentimental reflection after a joke setup. Its staying power comes from how quickly a few quiet piano notes can change the tone of a video. It is also often used alongside other emotional meme audio such as sad meow song when creators want an even more exaggerated tragic effect.