update: I tried with all my songs and yes I know it doesn't work with every song. I just think it works if you play the song on time or it works with some sort of upbeat song. But yea, it doesn't work perfectly like you would expect.
I was told that this is Hermione and Victor Krum are in the sky, but I didn't see that. However, there is something SUPER creepy in the sky. Once you get to the street view, look in the sky to your left. What is that?