从我的iphone应用程序中使用的itunes库中删除/隐藏文件

I have made an iphone application in which i am getting songs from itunes library and display in table as well as store them in my document directory. Now i want to make it secret..So i want to delete the selected file from itunes library so it wont be displayed in list. Can anyone help me to do this?? Code:I have made an iphone application in which i am