Songlio - Free musical guessing game: race friends to name that tune
keezy - A colorful soundboard. Play with music.
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.
Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
Fretello Stage - Jam, record and share your music in the blink of an eye
Splice - Music creation, collaboration, and sharing made simple.