public static void playSound(String name){
    try {
        FileInputStream fileInputStream = new FileInputStream("res/Sounds/Music/" + name + ".mp3");
        player = new Player(fileInputStream);
        player.play();
    } catch(FileNotFoundException e) {
        e.printStackTrace();
    } catch(JavaLayerException e) {
        e.printStackTrace();
    }
}

new Player(fileInputStream, volume);