
Dupin and iCloud Music Library Tracks
iCloud Music Library (formerly iTunes Match) works in conjunction with iCloud to provide access to your iTunes tracks from all of your computers and devices. iCloud Music Library is a paid service that is available to computers running OS X 10.7 or better and iTunes 10.5.1 or better and devices runnning iOS 5 or better.
Presumably you have a basic understanding of how iCloud Music Library works if you are using it.
Dupin will detect if you have iCloud Music Library enabled.
Important considerations regarding Dupin
Apple has not provided a means for third-party applications to detect the "iCloud Status" of a track (Matched, Uploaded, and so on).
Although unable to detect the iCloud Status of iCloud Music Library tracks, Dupin is able to detect iCloud Music Library tracks in your library that are stored in the cloud. These "cloud tracks" are tracks which have no local file (but whose files can be downloaded) and stream when you play them. Tracks that Dupin detects as "cloud tracks" will be colored blueor light blue if designated as a non-Keeper.
Otherwise, Dupin can only detect if a track has a local file. Again, it cannot detect a track's iCloud Status.
Filter iCloud Music Library tracks
Dupin can Filter for cloud tracks. It cannot Filter tracks based on their iCloud Status. (A workaround might be to create a Smart Playlist whose criteria matches one or more particular iCloud Status and select this playlist in the Playlist Popup before running Get Dupes.)
Purge iCloud Music Library tracks
If iCloud Music Library is enabled, Dupin cannot delete tracks from the iTunes library. Such tracks must be manually batch-deleted as described below. Fortunately this is a very easy and fast procedure:
Deleting iCloud Music Library tracks after a Purge:
- During the Purge operation, if iCloud Music Library is enabled, Dupin will copy tracks designated as non-Keepers to a new playlist it creates in iTunes named ***Dupin Purge Tracks***.
- When the Purge operation is complete, select the ***Dupin Purge Tracks*** playlist in iTunes.
- On your keyboard, press Option-Delete (press and hold the "Option" key and press the "Delete" key). This is the shortcut for deleting the playlist and the tracks it contains from your iTunes library.
- Follow the prompts displayed by iTunes for deleting the playlist, deleting the tracks, and optionally Trashing the files and/or removing the files from the cloud.
The ***Dupin Purge Tracks*** playlist is re-created on each Purge operation. If you do not Option-Delete it after a Purge the tracks it contains will remain in the iTunes library.