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Yes
Is your feature request related to a problem? Please describe.
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No
Describe the solution you'd like
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With CSV output of missing tracks, send this to Spotify to create a new playlist or add to existing playlist. Combine this with Lidarr Import List functionality to have a recursive loop that keeps a Spotify and Plex playlist in sync indefinitely by downloading any missing tracks. Lidarr can monitor a Spotify playlist and automatically download the album for any songs added to import to Plex.
Describe alternatives you've considered
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Lidarr functionality exists in a similar project (https://github.com/maxpfandl/SpotifyPlexSync/tree/main) and CSV import exists as well (https://github.com/smtchahal/spotify-import)
Additional context
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This could be a really cool feature!