Could music be used to save Ponyville?

Twilight travels to a parallel universe.

The Doctor must stop an old enemy of Equestria from altering the timeline.

The world unites against a threat in the North. The Mane Six are drafted to serve.

A spacecraft slams into the Everfree Forest. Twilight finds her place in the universe.

Scootaloo sets off to find out happened to her parents...