Vince Guaraldi's soundtrack for "A Charlie Brown Christmas" was perfect for the animation of the Peanuts comics. It's not just jazz, it's what Charlie Brown sounds like. It's what Christmas sounds like. And it perfectly encapsulates that melancholic feeling that comes around this time each year. In this episode, we'll talk about how jazz came to define the Peanuts sound, depression and anxiety as tackled by Charlie Brown, and the little Christmas tree that could.