For a better way for users to explore playlists, not just by genre or general feeling (happy, sad, upbeat,etc.), you could create a hashtag feature. Users can attribute tags to their playlists to classify it. This can bring a more personal touch, let the people put feelings on their playlists. Then in the search section, the whole community can look for distinct moods and discover music in a new way.
Updated on 2020-03-24
A similar idea has already been suggested here - feel free to add your vote to it!
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