So that's what happened here

The battlecry of the BBEG bard.

So Yennifer is a bard?

Now did you hear about the dancing plague?

That is the reason why the guy that led the revolution against to old realms was a high-level bard...

She's not the BIGGEST bad, but there's a major villain who's a bard type in Red Hand of Doom. (My players are about to meet her, actually.)

My favourite bard BBEGs were from Mystical Ninja on the Nintendo 64.

Suddenly that music video makes sense