When being at a party, or with friends etc there is a problem. Everybody want to play the song he/she is thinking about that very moment, and it all ends up with someone constantly changing the tune. Now I have come up with a solution.
SO the idea is simple. Somewhere in the program there is a button, (I'd like the right corner, just beside the profile pic....) which looks like a padlock. If you press it, you will have to write down a simple numeric code, and the spotify will lock itself. The music will continue to play though, just like normal. Whenever the person who locked it wishes to change song or do anything else with spotify, it's just to unlock it by using the code.
Then, for example, the partyhost can lock his/hers computer, so no one without the authority will change the tune, or start queing his/hers music.