Playlist Search Function Based On Song

[SoWhatIfIDecidedToBe]

A feature that allows the user to find a specific song among their playlists that are in their library. Suppose the user wants to find a specific playlist they made or added to their library, but can only remember it by a specific song in it. In that case, they can use this feature to find the playlist by typing the song's name into a search function that will show the user all the playlists they have that contain the song. That's all, thank you!