Quickmix analyzes your favorite tracks on Spotify and creates a playlist with your tastes in mind. It uses data collected from over 3 million playlists to determine which tracks fit each mood, activity, and your unique listening history. The result is a playlist curated just for you, right now.
Intersect.Ninja is a site that finds intersections between your Spotify playlists and your friends' public Spotify playlists, so you can see which songs and artists you all like!
The site is 100% open-source and your playlist data is processed completely by your browser, on your own device.
Moods & Songs has come to the app store to build a community of music lovers/fans/experts who , based on their experiences , can advice for a certain type of music for a specific mood.
It's very easy to use , you simply create an account with your email and start posting requests/advices/suggestions about songs for moods.