private CategoryType readCategory(String title){
		String s[] = title.split("_");
		
		if(s[0].compareTo("bass") == 0)
			return CategoryType.BASS;
		else if(s[0].compareTo("beats") == 0)
			return CategoryType.BEATS;
		else if(s[0].compareTo("harmony") == 0)
			return CategoryType.HARMONY;
		else if(s[0].compareTo("melody") == 0)
			return CategoryType.MELODY;
		else if(s[0].compareTo("effects") == 0)
			return CategoryType.EFFECTS;
		else
			return null;
	}