Experimental music is like a fun science project for music. Just like in science, where scientists do new and different things to see what happens, experimental musicians do the same thing with music.
Imagine you have some game pieces and you want to make a new game out of them. You might try different combinations of the pieces to see what new game you can make. In experimental music, musicians take different sounds, rhythms, and instruments and mix them up to see what new kind of music they can make.
Sometimes people don't like this music because it doesn't sound like the usual music they hear. But some people think it's exciting because it's new and different. Experimental musicians like to push the boundaries of what music is supposed to sound like, and they like to try new things.
So you can think of experimental music like a musical science experiment, where musicians try new things and create sounds that are different from what we usually hear. It might not be for everyone, but it can be a lot of fun to listen to and experiment with!