This picture, which I found on the Harry Potter wiki, is of the Weird Sisters, the wizarding band from the Yule Ball. In the picture, you can see that one of them at least is playing what seems to be an electric guitar. Indon't know what all of their instruments are, but they look exactly like a Muggle band, including their electric guitars and maybe other stuff. But everyone knows that, 1) Wizards are clueless to Muggle technology (I myself don't even know what electri--I mean, Arthur Weasley), and 2) Muggle technology doesn't work on the Hogwarts grounds.

Note: this is mostly about the movies, since I found this passage in the books:

A set of drums, several guitars, a lute, a cello, and some bagpipes were upon it [the stage]

  • 3
    I'm going with "magic"
    – Valorum
    Feb 9, 2016 at 12:50
  • You know, I thought about that. But I realized that 1) it's a boring answer, and 2) there is NO reason WHATSOEVER for me to know ANYTHING about magic. Eclecticity, that's what I know
    – CHEESE
    Feb 9, 2016 at 12:53
  • @Richard -- Ooo, you just utilized the "Because, magic" clause of The Many Tropes (Memes) of SFF! :D Feb 9, 2016 at 14:04
  • Richard is correct -- the answer is, actually, "Because, magic"! :) Feb 9, 2016 at 14:08
  • 2
    I'm pretty sure it's all, like, elrctisitty and stuff.
    – CHEESE
    Feb 9, 2016 at 15:33


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