Spotify has playlist folders on desktop.

You can play a playlist folder on desktop.

Playlist folders are visible on mobile, but cannot be played.

You cannot share a playlist folder for others to view.

So, this automates the creation of mega-playlists based on all playlists starting with an emoji.

(It also keeps playlists in sync if all their tracks are from a single album.)

Pseudo-playlist-folders through emoji.