Flash 11+ Player required to play. The player creates a song followed by a "dance" for that song. A dance rhythm game then lets the player play his or her creation. If they like what they created, an editor lets them fine tune their creation (though unlike the initial creation phase, not in real time). The theme of Not a Game is covered by the fact that the focus is not on the rhythm game but on the creation of a song and dance. The real-time theme is covered by the fact that the song/dance is initially done in real time.

It is not as polished as I would like, but before you judge the game too harshly, remember that the creator of the game knows less about music than Mozart does about programming.