PlayListPilot is a web app that helps you organize your music with the help of TAGS. It allows you to create, modify playlist on the basis of TAGS. Lets see how it works.
Click on the Add Tag option to proceed
You will get a list of all of your liked (or created) playlists. Select any of them to get started.
You can add any TAG to any song. You can add tag according to singer, type of song, mood etc.
Click on the TAG to generate the playlist containing only songs that contain that specific TAG.
Hurray! Your playlist is generated with the songs that contain that specific TAG. Now you can enjoy your playlist.
Your playlist is exported. You can see your playlist in your Spotify account.