What could be funnier than a repeated note?

What's so funny about a repeated note? I already played it. Duh.

Yes, but did you listen to it? Okay, you touched the key two times. But didn't you notice that the sound was different the second time?

Aha! You weren't listening! Something happened inside the case and you missed it. Try again.

Until the piano was invented there would have been no point in repeating notes on a keyboard instrument. Someone should do a Ph.D. dissertation on the subject, though that would be pooh-poohed as equivalent to a doctorate in pixels.

What's wrong with pixels?

Once again, with feeling: What could be funnier than a repeated note?

What absolutely hysterical composition do you think prompted this post?