For macOS 10.10 and later only. This script will allow you to merge the track contents of two or more playlists or delete any number of playlists at once, including Smart, Genius, and Playlist Folder playlists. The merge feature will prevent the same tracks that may appear in different source playlists from being duplicated and has an option to delete original playlists. The delete feature only deletes the playlist; tracks, of course, remain in the library.
Very handy when assigned a keyboard shortcut.
About to merge two selected playlists to a single existing playlist. The tracks in the two selected playlists will be copied to the target playlist.
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