It will not affect your pre-existing playlists. Any way “Save as new playlists” button create new playlist which called (Old playlist name sorted by “music attribute”) in your library. No changes happens to your playlists until you explicitly click on “ Like all songs” or “Save as new playlists” button.Make your playlist clean! bulk delete unwanted songs from your playlist, just select them then click “delete selected songs” option in the dropdown button to remove these multiple tracks at one time, while keeping the order that you have chosen before. This tool checks any playlists in your Spotify library to finds duplicates, once it finds them, you can show them and remove them. 2- Remove duplicates from Spotify playlist You can add all playlist songs to your library (liked songs) by just one time click. This tool gives you more control on your playlists with three additional options: 1- Like all songs in Spotify playlist Release Date (Newest First or Oldest First).Sub genres (Alphabetical and vice versa).Main genres (Alphabetical and vice versa).

In addition, you can sort your playlist by

Time Signature (High-Low and vice versa).Key – Music Key for this song (High-Low and vice versa).Instrumentalness (High-Low and vice versa).Track Length (long-short and vice versa).It lets you get your playlists in order based on Genres, moods with a number of music attributes that are included with this app: This music sorter was built using the Spotify API. You also can pick specific songs to make a new playlist. Save the new sorted playlist to Spotify.Click on the column headings in the playlist table to sort the playlist the way you want.Any way this sort will not change on your playlists on Spotify) Choose one of your playlist (to help you easily find the playlist you want, you can Sort your Spotify playlists by clicking on headers.

Once you’re logged in, your music library will be synced.

Spotify music organizer