Why is Spotify doing this, is it a deliberate thing to make people use premium? By force adding songs and then just adding more songs in the queue when you remove a song that they added?
ugh, I like to have artist specific stuff and not have to waste data by using YouTube -.-
To prevent this, I reccomend making your playlist significanly long. Seems to work for me. Have at least three albums worth of music or around 50 tracks. Spotify will inject music into any album. So don't play albums use playlists with a combination of albums and tracks you like.