answer:You will have to – there is no way to delete duplicates, because iTunes wants YOU to determine which copy you want to keep. Are they exact duplicates? Are they all within the same Music folders on your hard drive? Or are there features that might distinguish the original from the copy? Of there are, than sort the Library by that feature and Shift + Click to select the whole range of the songs with the feature you want to delete, then hit Delete. You may want to see if they have different dates in the “Date Added” column, as this may be the only distinguishing field. Good luck!