[Vespasian]

That would be good experimnent and could actually work.

I would love to try it however they would have to solve "global song availability" and "Sponsored songs only Stations".

But if they did try there is the chance of some niche communities forming.

It wouldn't even need to be live to begin with. A narrated playlist with a DJ and basic control functionality such as fading into songs or a voice over.

Not trivial but doable and I wonder why they never tried that.

[vintermann]

It has been tried. I don't remember its name, but I remember that they have changed names at least once. It's a pretty obvious "app" for Spotify's API which they opened up a few years ago.