If you listened recently to that song, you can always take a look in your recent listening history. You can check out this support site article for more info on how to locate this option in your desktop device.
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"Kindness is the language which the deaf can hear and the blind can see." - Mark Twain
Spotify algorithms allow you to listen to the songs you've been listening to recently. Although the problem may be that you have not heard that song recently, do not worry, the good news is that surely that song was not one of your favorite songs anymore and you will not miss it so much. 😉