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See which Music playlists a song is in on Mac
You can see which playlists a song has been added to.
Go to the Music app
on your Mac.Click Songs in the sidebar, Control-click a song, then choose Show in Playlist.
A submenu shows the playlists and library category that include the song. To open a playlist, choose it from the submenu. A collaborative playlist has the collaborate icon 
next to its name.