 The songs kind of went with the mood of what was happening because I think there's one point in the musical where they talk about George McFly, the dad, is going to go nowhere because he seems like a loser. And so the song comes back in is you'll go nowhere. And they sing that song again. So they're not singing the script, if you will, but they're actually doing a very good job incorporating whatever the theme is at that current moment into a song.