The real, unequivocal end is here.
Harmon the Harmonica is old, bald, and unfunny. He thinks he's cool and has a Boomer mindset.
Harmon plays his harmonica in a very unique way. He is not known for his ability to play in tune, but rather for his unique playing style. He likes to bend up high notes on the highest note of each chord and down low on the lowest note of each chord so that it sounds like he's going out of tune at the end of each phrase. This technique gives Harmon a very distinctive sound that no one else has been able to imitate because they can't understand how he does it!
Harmon tries to be "cool" by wearing sunglasses even when there isn't any sunlight out because he thinks that if you wear sunglasses in front of others then they will think you are cool or something like that. But really Harmon just wants people to notice him so that they will give him their money and buy things from him like hats and shirts with his face on it so that he can go out into public places wearing them so people will see how cool he is just like how people used to see Elvis Presley.