Feature description:
When we can click and add a song to a playlist, it’s easy to accidentally put it someplace you didn’t mean to, but undoing it would mean switching to that playlist and digging it out, as opposed to just being able to click it a second time to toggle it back off the playlist.
Problem solved:
Fixed accidental selections
Brought benefits:
Makes playlists actually mean something when there aren’t random accidental inclusions from the wrong genre, etc
Other application solutions:
Additional description and context:
Screenshots / Mockup: