For macOS 10.12 and later. This applet will create new Music track playlists based on each selected entry of a specified tag. That is, create individual playlists for each Artist, Album Artist, Album, Composer (or their "Sort" siblings), Genre, or Year.
A good companion to this applet is Merge-Delete Playlists.
A new playlist will be created for each checkmarked entry and will contain Music tracks--in this case--whose artist tag is the same as the entry. The red-colored entries are already playlists.
Perhaps Also of Interest...
downloaded 5m 2s ago
Display the width x height of selected track's artwork
downloaded 5m 11s ago
Copy chosen tag info from one set of tracks to a different set of tracks
downloaded 5m 52s ago
Renumber order of selected tracks
downloaded 6m 5s ago
Paste non-ID3 Tag track and file-related info into Category, Comments, Description or Episode ID tag
downloaded 6m 18s ago
View/Edit tags of selected track(s) in single window
downloaded 6m 38s ago
Delete characters from the beginning or ending of selected tracks' name, artist, album, comments, composer, or show tags