AVSEQ

AVSEQ is an audio-visual sequencer puzzle game. Connect falling atoms to unlock near-endless varieties of music at each stage. Every level of AVSEQ is a music sequencer with 2.2300745198530623×10^43 possible audio permutations, that's 22 tredecillion in total!
No, we're not making those numbers up. We actually did the math. This is a generative music game designed by procedural systems wizard Tom Betts, and it provides a colorful, beautiful challenge to even the most hardcore of puzzle-game experts.
Key Features
Infinite freeplay mode
Generative unlockable music
Twenty-two tredecillion audio permutations