I wrote a fairly similar library that additionally uses data from last.fm and pandora, and supports compiling by track similarity as well: https://github.com/gw

I wrote a fairly similar library that additionally uses data from last.fm and pandora, and supports compiling by track similarity as well: https://github.com/gwicke/compilation https://github.com/gwicke/compilation I'm using it to power the auto-playlist feature in my fork of https://github.com/andrewrk/groovebasin https://github.com/andrewrk/groovebasin, a node music player.