Spotify - Map shows when two people play same song at same time

Songlio - Free musical guessing game: race friends to name that tune

Magic Playlist - Get the playlist of your dreams based on a song

SongTrivia2.io - Songtrivia2.io is a browser and mobile blind test game that allows you to play in real time with your friends or against strangers. Several musical themes, difficulty and game modes are available to create lots of different musical quizzes.

Playlist Machinery - Tools that help you create & organize your Spotify playlists

Rock On! - A song pop adventure - music trivia awesomeness