• i Tunes Library: The i Tunes library, or main library, is the topmost playlist in the i Tunes Source list where every track whose file you have added to i Tunes is listed as a track.
(I will not use library to refer to the "i Tunes Music folder" where files are stored, and neither should you, ) A misconception some users have is that the library is just another playlist that happens to be permanent.
• "Music track", "audio track", "i Tunes track", "track": A track in i Tunes is a , if you will. When you import or add a file to i Tunes, the actual file does not get put into i Tunes.
Believe it or not, this is a misconception some users have.
" I would be the Wealthiest Fellow such that this site's Amazon, Kagi, and Pay Pal payboxes would be completely unnecessary.
This question suggests that the poser has a grand misconception about tracks and files.
Each track added to the playlist has the same database id as its counterpart in the library. i Tunes tracks, of course, are in the i Tunes library and any playlists you have distributed them to. i Tunes, by default, stores files you have imported from CD, purchased from the i Tunes Music Store, downloaded as Podcasts, or converted from other i Tunes tracks into the default i Tunes Music folder.
You have only created another reference to the same file. This is the topmost folder wherein those audio files (imported, purchased, or converted) are located. ) add is a separate process from import and convert.
If the "Copy files to i Tunes Music folder when adding to library" Preference is unchecked then the added files remain where they are and i Tunes creates a database entry for the file where it currently exists. When you look at the playlist, you have four identical tracks!
Think of it like this: in the old days, music aficionados, such as myself, kept shelves full of CDs (or vinyl records) in their house.
I would piddle with my music collection on the shelves, organizing it by genre or artist or album name, or what have you.
i Tunes will not allow a file to be re-added if it detects its Song Name, Artist, and Album name is already in its database. The script looks for duplicate occurrences of a track's database id.
There is a possibility that you could have tracks which refer to the same audio file listed multiple times in a playlist. By the way, you cannot create a duplicate library track from the same audio file.