I went to sort my playlists out of curiosity as well... I don't really repeat an artist more then 4 times in a playlist apparently, but there is a lot of Noisia in one of my playlists. It has more to do with the fact that Amon has played Noisia in his sets a lot (that playlist contains every song recognised from his sets)... The Upbeats and Phace are also notable.
If you would ask the same thing from me 4+ years ago, the answer would have been clear: Robbie Williams and Blur. There was little else I listened to those times, so my playlists mainly consisted of those two.
Another thing that makes answering this a little more difficult: I buy albums, and once I have obtained an album, I remove its songs from my Spotify playlists and likely never listen to this album on Spoty ever again ;)
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