What the image shows
The close-up frame shows a ginger tabby cat with half-closed eyes and a serious look. It's dressed in a blue shirt and is playing the keys: one paw touches the keys in the foreground, while the other reaches further into the frame. The background is dark and muted, which heightens the sense of a studio shoot and makes the scene even funnier.
The cat's facial expression looks as though it's fully absorbed in the performance, and it's exactly this seriousness that makes the video funny. The viewer sees not just an animal banging on the keys, but an artist performing music with total focus, and this contrast is at the heart of the entire meme.
Origin
The video of the cat in a shirt appeared long before it became an internet meme. According to a widespread account, the recording dates to the mid-1980s, and the cat in it, named Fatso, belonged to Charlie Schmidt. The exact circumstances of the filming and its first broadcast are not known. In 2007 the video was uploaded to YouTube and quickly gained popularity in English-speaking communities.
Very quickly the video turned into a template: in English-speaking communities a habit took hold of inserting it into discussions as a marker of failure. The video became a signal for the moment when a plan went wrong, and it was exactly this function that made it one of the longest-lived images on the internet.
How the meme is used
Piano Cat is used above all to denote a fail, a blunder, or a situation that went completely off plan. A classic example: a person confidently starts a presentation and the slides won't open, or someone falls flat out of nowhere, after which a frame of the cat playing the keys appears in the chat.
The picture is also applied in the sense of a triumphant finale: after a successful but absurd act, users insert the frame with the keys as a musical accompaniment. Sometimes the video is also used in video editing, with the sound of the keyboard instrument added to funny situations.
The video also serves as a visual cue in videos and podcasts: it's inserted as a short cutaway when the narrator talks about a failed experiment or a mistake. This device is recognized instantly and needs no explanation. In addition, the video spawned a great many parodies and reworkings, in which the cat still plays, while only the instrument, the plot, and the caption change.
Why the meme works
The main strength of Keyboard Cat lies in the combination of seriousness and absurdity. The cat in a shirt, eyes half-closed, plays as if performing a concert, and this exaggerated confidence turns a mundane scene into comedy. The viewer laughs and sympathizes at the same time, because everyone has at some point performed with the very same confidence right before a flop.
The meme also endures because it transfers easily into any context. The short clip requires no backstory, and the musical accent makes it recognizable even without sound. That's why Keyboard Cat remains one of the longest-lived internet templates, even though the video itself was filmed long before social networks existed.