Harvey Kneeslapper's piano prank

[minor muppetz]

(Harvey Kneeslapper is seen laughing and doing something to a piano. He then notices the audience)
Harvey Kneeslapper: Oh, hi there. (starts giggling) I have this great joke planned. You see, this is Don Music's piano, and I have attached some elevtrical wires to this piano, so when he hits a certain key, the piano will explode on him! (starts laughing) Oh, here comes Don Music now. Hey, excuse me, Mr. Music...
Don Music: Yes?
Harvey Kneeslapper: I have written some music, and was wonderign fi you would play it for me on your piano.
Don Music: Oh, of course I will.
Harvey Kneeslapper: Good! (puts sheet music on the piano) Okay, you can start playing.
Don Music: Oh, you bet I will. (Don Music plays the piano, but seems to miss a note)
Harvey Kneeslapper: Oh, you're playing it wrong. Try again!
Don Music: Alright.
(Don plays again, but still has a bit of trouble hitting the right note)
Harvey Kneeslapper: No, no, no, try again!
(Don tries again, and makes the same mistake)
Harvey Kneeslapper: No, no, no, try again!
Don Music: Oh, I'll never get it right! Never!
(Harvey bangs his head on the piano, but Harvey blows up, instead of the piano)