Bandlab - Capture, nurture, and collaborate on song ideas in the cloud

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

Amper Music - Artificial intelligence music composer

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.

Music Memos by Apple - An app to capture your song ideas

SongPop - The world's biggest music trivia game. Now even better.