Do You Dance Over? Is It a Homebrew Spell?

On a failed save, the target begins to feverishly dance through the magical influence of the music and cannot take an action, bonus action, or use movement until the end of their next turn. We're currently in a scene from Fantasia right now. It's some kind of Fantasia fever dream. Just for the audience's sake, it is a homebrew spell that Micah came up with. No part learned this in the faraway lands of Nashville. Is that close to the shire? I'm told this should be DC 13, not DC 15. Please break the game.