The study is interesting, however I think Spotify's algoritms and user interface in combination with its promotional tools for publishers and labels are interfe

The study is interesting, however I think Spotify's algoritms and user interface in combination with its promotional tools for publishers and labels are interfering with the results. These are specifically designed to make the users make certain choices. I still get loads of recommandations on music I never will listen to in the app. These are not strange and obscure music suggestions, neither are they promotion of artists and music within the broad spectrum of genres I listen to. They are in large promotion of the already top promoted artists in the world. Their search is not very good for finding new and interesting music either. In my experience you need to have very specific knowledge of what to look for, to get good results. So, when Spotify do this kind of research I would be very interested in how they take into consideration the effect their own activity have on their users behaviour? In my personal experience they constantly try to make me less explorational. I prefer Last.fm for exploring.