Great use of limited colours here! I loved your puzzles and all the panels and control rooms and the pianos! (really liked how you could bump to the first piano and make noises!).
The piano level was great, especially how you coded in the rest of the song to come in triumphantly!
Congratulations! I think this is a fantastic submission where sound is used in different ways to pass the puzzles. Listen to the narrator, create the right pattern of sound and solve the math problems. Nice story jump with cat escaping, unfortunately with the hands, even with the hints I couldn't pull it off. But that doesn't influence my rating at all. Great clear voice acting!
and again, the colour palette completely transformed your game in my opinion this round!
Fantastic submission in my opinion, you found a great way to explore the theme in more than one situations, something I wish I had managed to also pull off. Awesome!