Continuing the trend of odd MLP mashups with Zelda background music... we have This Dark World Aria! I was surprised by how well these two songs seemed to work together. It still took a fair bit of surgery to get the dissonance down to a tolerable level. It ain't perfect, but then again, what in this life is?

Credits:
Dark World Theme is the property of Nintendo and is ©Koji Kondo
This Day Aria is the property of Hasbro and is ©Daniel Ingram
I'm not sure who did the Zelda art in the background image, so I'll give credit for that to Bill Murray, because... come on... the guy deserves it. [Edit: I just discovered it's by someone named Neko. Sorry, Bill... maybe next time.]

Arrangement is mine.