Music Theory with Octavia: Cadences

Well, that's Octavia and her class traumatised for a while...

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Oh gods, this is actually done. Sure, I only started it on Wednesday, but phew... a comic strip. Done.
Hope to gods the music theory in this is actually correct, 'cause that's how I understand it.

EDIT: Apparently, what I called the 'Imperfect Cadence' is known as a 'half cadence.' After asking my music teacher who taught me about this and finding out he had never heard of one before and then after searching the internet, we came to the conclusion that its called different things around the world. So... yah. I'm gon' check these comics with an international audience before posting them, jus' to make sure I get every angle. Want it to be as edumacational as possible.

Octavia, Queen Chrysalis and My Little Pony(C) owned by Hasbro