equalizer

Hello, I am using syncthing for android and I can only do two way sync in its application folder. is there any way to force this music player to scan inside a specific folder?

Say I have two players:
Player player1 = Player(id: 1);
Player player2 = Player(id: 2);

If I change the volume of player1 it will also change the volume for player2, which shouldn't happen.