Seraphim Automata / セラフィム オートマトン

Seraphim Automata is a 2d game that allows you to generate music in a variety of styles with cellular automata.

You can select 13 different music genres (classical, jazz, choral, gamelan, etc), 12 different scales, all 12 keys, and 8 rhythms for a total of 14,976 possible games.

There are 80 levels total. You progress by avoiding the cells while shooting them. Rooms and time signatures get increasingly smaller the higher you progress.