How long will my song stay on each playlist?
at least 2 weeks, some keep you even over 4 weeks. 2 weeks is the minimum requirement for curators
to keep an track on the playlist, if they don't keep it at least 2 weeks they will get flagged.
If you have a hit potential song, why would curators need to delete the track? Then you might be in the playlist for much longer. We can prove some songs are still in the lists since months.