Songs in different playlists

[-iRoLL-]

Hi. 

I have a doubt. Say, I download a song to listen to it offline, so i save it to Song, but then I want to create my own playlist and I send the song I downloaded previously to this new playlist. The question is: Is this song stored twice? or is it just downloaded once? I just wanna know if using one song in different playlist takes more space.

Thanks!

[IamWilliam9 · Accepted solution]

When you have a song on a playlist available for offline, and the exact same song on another playlist, Spotify will share the file with both.