ELI5: Explain Like I'm 5

Harmonica

A harmonica is a small musical instrument that you can hold in your hand. It has a bunch of little holes on the top and a little metal piece that you blow into on the side. When you blow into the metal piece and cover and uncover certain holes on the top, different notes come out.

It's kind of like playing a kazoo, where you hum into a little pipe and it makes a funny sound. But with a harmonica, you can make lots of different sounds and play different songs! People like to play the harmonica in all kinds of music - like blues, folk, and even rock and roll.

Some people even say that playing the harmonica can make you feel really good, like when you hear your favorite song or eat your favorite food. So maybe you'll want to try playing a harmonica and see if it makes you feel happy too!