Answer:
Chromatic scale.
Explanation:
I am in band. The Chromatic scale includes note going up and once you reach the point it goes back down. The notes it starts with will differ in which Chromatic scale you are playing. Hope this helps!
i may be able to help but id need to find a way to like- talk talk to you so i can get more information, this is a familiar anime but id need a weeeeee bit more info
It should be A. good luck