Indication that a song has been played before/partially within a playlist

[mike6789]

Whenever I start a playlist, I want to make sure that I listen to the whole thing over the course of a week or so (weekly playlists like Discover Weekly/Release Radar); however, often when I come back to the playlist after a session, I forget where I left off or worse, shuffle was on and I have no idea which songs I heard/partially heard vs which ones were completely unlistened to.

I am dying for a feature which shows (maybe by simple color indication or progress bar style) that I've listened to this track before vs never started.

PLEASE consider this!! If I can help in any way I would!! I think many people would value this feature