Use scanf-like and regular expressions pattern-matching to disassemble groups of song names and reassign text to correct tags. For example, parse the song name XTC - English Settlement - 15 - Snowman using the pattern %a - %l - %t - %n, sending artist, album, and track number to their appropriate tags.
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Make one big playlist from many using original track order
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Convert selected tracks and export the converted files to a new folder
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Batch merge and/or delete playlists
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Continuously update your desktop picture to current track's artwork