((To my understanding, Midnight had the whole world unloose hell onto him / crashed on him into depression.
Well, when that happens to Mio ((I got her FULL name now. well full first name 'Mionooka (My-oh-Nak-a)) THIS. apparently is her song.
[link] ( Just copy and paste it to your URL. Its a Magia. Which is a song.A Puella Magi Magical Girl song. Watch Puella Magi they said, It was a normal Magical Girl anime they said. nowhowdoismalltext. Excuse my Anime-ness but that is my guess.))