Synthesizers! They're like... like a piano, see? Only, they have all these buttons, an-and they make all sorts of wicked sounds! Like whizzes and shit. Beeps and bloops and hums, see? They're electronic, so they don't work here at Hogwarts, but they're really very rad. Very muggle.

[There's a pause, then-] OH! Ohohoh! I have, I have records, see? My favorite band, they're called- they're called the Human League, see? And they've got a synth, so I can show you how it sounds, right now, if you like!