public void Clear(){
		num=0;
		if(Composer instanceof FreeMMC)
			Composer.setNotes(null);
		else if(Composer instanceof AtonalMMC)
			Composer =new AtonalMMC(compName,composer);
		else if((Composer instanceof AlgorithmicMMC))
			((AlgorithmicMMC) Composer).setNum(num);
			
	}