Sounds like a cool idea! Interested to see where this goes.

As people point out, Spotify's current lista aren't changing all too often. Some more than others. I can attest to it myself, I have one track in an editorial playlist and it's been there for ages now, pretty surprising. I thought they'd change it at least each month.

Regardless it would be great to have a tool like yours for artists. Or combine it somehow, that people not only find new playlists but new artists.

For us artists it's almost entirely pointless to be in playlists, because it doesn't pay a lot and many playlists don't give meaningful metrics. Sure it's some plays and if you're lucky it'll make you a couple of bucks too. But many people listen to it passively and won't even like or save your track for later. Everything becomes futile this way, focuses entirely on the consumer and very little on the creators. What we as artists need is people to find us, our pages and I believe it can also be beneficial for listeners. Isn't it fun to discover a nice new artist?