Okay kiddo, so you know how we play the piano and some notes sound good together while others don't? Well, musicians have different scales that they use to help them choose which notes they want to play.
One scale that is used a lot is called the octatonic scale. Octa means 8, so this scale has 8 notes in it. Pretty cool, huh?
Now, what makes this scale special is that it alternates whole steps and half steps. A whole step is when you go from one key on the piano to the key right next to it, skipping the black key in between. A half step is when you go from one key to the very next key, whether it's black or white.
So the octatonic scale goes like this: whole step, half step, whole step, half step, whole step, half step, whole step, half step. It's like a pattern, see?
Now, the notes in this scale are very unique because they can be used to create different moods in music. Some people say they sound mysterious or spooky, while others say they sound jazzy or modern.
Overall, the octatonic scale is just one tool that musicians use to make beautiful music. Who knows, maybe one day you'll be able to play it yourself!