231 - Witch is it?

Student: My mom sight-read my accompaniment no problem [she has a master's in piano]. She's a piano wizar...witch. My mom's a witch.
Me: Wow, you just called your mom a witch??
Student: Well, I was going to call her a wizard, but then I went with the female version of that. So I called her a witch. She's from Harlem.
Me (confused, knowing she isn't): ...?
Student: Ok, she's not, but you know, Harlem? Like the Harlem Witch Trials?
Me: . . .you mean the *Salem* Witch Trials...
*student throws hat and walks away laughing at himself*