Eu acredito que isso é "Você está ouvindo?" por Harlan Ellison.
Descrição do site da Ellison :
Albert Winsocki is an unobtrusive man. The most exciting thing about him is his surname. He is the sort of person who enters a room, and people ask who left. His lack of distinguishing personal attributes is matched only by his lack of concern. He has a comfortable, secure life in his own eyes - predictable and safe. He is an inert human in an interactive human world...until his life reaches it's logical conclusion, that is... Suddenly, Albert has a story to tell.
Começa:
There are several ways I wanted to start telling this: First, I was going to begin it:
I began losing my existence on a Tuesday morning. But then I thought about it and:
This is my horror story.
seemed like a better way to begin. But thinking it over (I've had a devil of a lot of time to think it over, you can believe me), I realized both of those were pretty melodramatic, and if I wanted to instill trust and faith and all that from the outset, I had just better begin the way it happened, and tell it through to now, and then make my offer, and well, let you decide for yourself.
Are you listening?
Albert tells us his story of a fate worse than death. He had not lost his life - he has lost his existence. With no meaning or substance to validate his life, he drifts outside what living people call reality, taking us with him on a hauntingly familiar, yet strange and terrible exploration of his new situation.
Ao pesquisar nos livros do Google, também encontrei a parte "socos no nariz":
I hit him a third time, and his nose broke.
He never noticed.
He left the elevator, covered with blood, and never even flinched.
E encontrar outra pessoa que possa vê-lo:
"Ah-ah, buddy," the ma in the trenchcoat chastised me, wagging a lean finger in my face. "Now that isn't polite at all, is it? To his a man who can't even see you."
E até mesmo a parte sobre a música:
"My name is Thompson, Mr.--ah--Mr. what-did-you-say-your-name-was?"
"I didn't, but it's Winsocki. Albert Winsocki. Like in the song. You remember the song, yeah?"
Eu também não reconheci a música, mas user14111 forneceu um link para a música, aparentemente intitulado "Buckle Down Winsocki "