Okay kiddo, so you know how we have different moods in music? Sometimes music sounds happy and sometimes it sounds sad, right? Well, the minor scale is like the sad mood in music.
You know how we have a group of notes we call the C major scale, right? It goes like this: C, D, E, F, G, A, B, C. But if we start from A instead of C and use some different notes, we get the A minor scale. It goes like this: A, B, C, D, E, F, G, A.
The thing that makes the minor scale sound sad is that it has something called a "minor 3rd" interval. This means that there's a specific distance between the 1st note (A) and the 3rd note (C) in the scale. In the major scale, this distance is a "major 3rd" which sounds different and makes it sound happier.
So, musicians use the minor scale when they want to make music that sounds a little bit sadder or more emotional. Sometimes it can even help us express our feelings better through music!