Spotify codes, introduced back in 2017, function similarly to QR codes. They are unique identifiers for elements within the Spotify system, including songs, albums, playlists, podcasts ...

If you’ve used Spotify, you might have noticed a handy little code that it can generate that looks like a series of bars of different heights. If you’re like [Peter Boone], such an encoding ...

Here's what to look for and where you can find them in your Spotify app. Generate Share Codes for Every Song Did you know ...

I use this social feature to discover new artists from my friends list. Spotify Codes is another feature you can take advantage of when it comes to sharing your music tastes with friends.

According to Hypixely on the r/truespotify subreddit, who says they've been "digging within the Spotify app", there are references in the app's code to a new, more expensive "Supremium" service.