We want to sync the music and hear to Spotify on two devices at the same time or with someone else. Maybe it's not to be with the same account or it can be. We just want to listen the same song at the same time in this world at anywhere. This is the best next feature you guys can add. Please don't do for family members can do it only or duo premium can do this only. Maybe you guys can add an invitation code to listen together like we play in the game. It's up on you.