The sounds of a commute are the soundtrack to a morning. It could be car horns while stuck in traffic, the screeching of the train skidding along a curve, or in this case, a man named Marvin. Marvin goes to the same spot each morning. It doesn't matter what the weather's like or what day it is, he's there trying to make people's days better, by doing something that makes him feel better, too. He's a part of the soundtrack to people's commutes and he sees the commuters as his friends and family.
Music in this episode by Podington Bear (http://podingtonbear.com)