When you go to battle a friend or if you go onto Battle Spot, if you set the game up, you can also select Music. You start off with four pieces, but as you go through the game. This can all be controlled by tapping the bottom screen as you prepare for the battle. There are multiple different new pieces of music, bu some of it can't be used with Sun & Moon while others can be

The Battle Tree also allows for you to change the music that plays when you battle in it. If you have it set to standard then it will just be the Trainer battle music. This will last until you change it back, but the Battle Tree Leader will override the music the first time you battle him.

The Festival Plaza is a place where communication takes place, a s well as a location for various shops so you can upgrade your Pokémon or collect items. It's unique in that you rank it up as you participate in the activities within and when you reach Level 40, you have the ability to change the music that plays in your Plaza.