The radio stations would sound better if there was some thought put into the sequencing of the songs. When I start a station from a playlist, the station will jump all over the map playing different genres. It doesn't sound great.
I don't know what the correct solution is exactly, but a couple of ideas could be:
1. Pick a track from the playlist, and force the next few songs on the station to be similar to that track (using whatever EchoNest gives you for similar tracks). Repeat for the next block of songs.
2. Figure out up front what the next 20 songs will be on the station (which obviously is impossible to be perfect, since the user can adjust the station as he goes) and sequence those songs in some way.
Your idea has been submitted a while ago but unfortunately hasn't gathered enough kudos (25 per year). In order to keep an overview of the active ideas in this forum, we will close this idea for now. However this does not mean that your idea has been declined by Spotify.
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