A Soft Murmur - Ambient sounds to wash away distraction.
Magic Playlist - Get the playlist of your dreams based on a song
Rainy Mood - Rainy Mood is the world's most popular rain simulator. Sleep, study, and relax with the sound of rain.
Spotalike - Spotify playlist with similar songs, according to Last.fm
Noizio - Feeling that the noise of the big city is too much for you to bear?
Spotify - Map shows when two people play same song at same time