I just recently joined Spotify. I have found their "we will play similar music after your music ends" feature to enable me to discover lots of new artists. I find it interesting you found Spotify lacking here, because I am finding the opposite.
I'm a long time Spotify user. I love that feature too and it worked very well for me when it first launched. But after a while it started playing the same songs that I have already heard many times. Spotify's algorithm is very unpredictable so I can't say it will work out the same for you. But if it will, at least you can have another try with what I'm trying to build ^_^
Gotcha. That makes sense. I could see how over time that feature gets less useful. Looking forward to trying your tool, if you have a website or mailing list for it, please share.
