Oh my god. I love the song this chapter revolves around! Not only is it cool that it is a part of the crux of the story, but that after reading this chapter, people are going to go find the song on Youtube and discover the music video featuring clips from the penguin Vietnam War movie, which, yes, is also up in full on Youtube.
EDIT: For anyone who wants to know about the penguin Vietnam War movie (which, by the way, was made to be a beer commercial) it's called Penguin's Memory Shirawase Monogatari. Seiko Matsuda made the song Sweet Memories for the movie!