Music of the Spheres is a puzzle-shooter about bouncing bullets, Islamic art, and sound. In it you can fire bullets which bounce, and when they bounce, a specific glockenspiel note is played.
That simple premise gives rise to a lot of strategies, and the levels are designed to bring those strategies out. The way they do that is more “puzzle” than “shooter” - the game does not require many reflexes or risks. It just requires thoughtfulness and precision. It is intended express things concisely, and wordlessly - you do not have to be able to speak any language in order to play this game.