I believe that most of the people would find it easier to share music with their friends on Spotify without the need of having to share it first to facebook Instagram or any other social network. Imagine the possibility of sending a song by just clicking, dragging and dropping on the name of the person that you want to share it with. I would make Spotify a little more social as people would now have a direct way to share music. This could benefit the company as this would make people spend more time using the app and have better reception.
The way I picture this is by having the people that follow each other mutually the possibility of share music, just like a friend list.
Updated on 2019-06-06
Spotify used to have the functionality you describe, which is no longer present. The discussion regarding this is located here:
Any update on the matter should be posted there.
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