For some reason, the sound quality dropped significantly during the song. The overall sound just felt hollow, like it was coming from a tin can speaker. Maybe they were trying to make it sound more realistic by simulating a real stage environment. Well, they failed. Live performances don't sound like cheap earphones. I would have been much happier with a toned up performance even if it sounded fake. Sora no Otoshimono is all about exaggeration anyway.