In music, an operation is like a special way to change or transform sounds. It's kind of like how when you play with different toys, you can make them do different things.
Let's imagine you have a special musical toy. When you press a button, it makes a sound. This toy has different buttons that do different operations. When you press one button, it might make the sound louder or softer. When you press another button, it might make the sound higher or lower.
One operation that you can do is called "repeating." It's like when you say or sing the same thing over and over again. Imagine you have a toy that plays a musical note. If you press the repeating button, the toy will keep playing that same musical note over and over again. This can make a cool pattern of sound.
Another operation is called "reversing." It's like when you listen to a song and then play it backward. When you press the reversing button, the toy will make the sound go backward. It might be a little weird, but it can sound interesting and different!
There are many other operations too, like "delay," which makes the sound echo and repeat a bit after you make it. It's like when you shout in a big hall, and you can hear your voice bouncing back to you.
Operations are fun to use because they help us change the sounds and make music more exciting. They allow musicians to be creative and make all kinds of different sounds using their musical toys.