public static void stopMusic() {
		try {
			switch (Game.getInstance().getCurrentLevel().getLevelType()) {
			case Level.LEVEL_SIMPLE:
				SoundEffect.MUSIC_1.stop();
				break;
			case Level.LEVEL_MID:
				SoundEffect.MUSIC_2.stop();
				break;
			case Level.LEVEL_COMPLEX:
				SoundEffect.MUSIC_3.stop();
				break;
			}
			isMusicMuted = true;
		} catch (Exception e) {
			e.printStackTrace();
		}
	}