The song used in Nightmare Moon's Melody is Davy Jones' Music Box from Pirates of the Caribbean 2: Dead Man's Chest.
One thousand years ago, Princess Luna, a Canterlot princess of Equestria, fell into darkness and transformed into Nightmare Moon. Throwing the land into an eternal night, it was up to Princess Celestia to defeat and banish her into the moon. Now, after one millenia of turmoil and anger, Nightmare Moon has return to exact her revenge.
This wasn't one of my BIG projects that took weeks or months of microscopic editing and timing. This was just something I wanted to do while I'm working on one of those bigger videos. The song is both somber and dramatic and fit Nightmare Moon very well.
Hope you guys enjoy!