First off, I love the music!
Your game is by far the most unique. Sometimes, when a person says a game is unique, it means it was bad and they couldn't think of anything else to say. This is not one of those times. This game is really cool. I could see this on the App Store. I would for sure sink hours into this and even buy the no ads version.
love the visual simplicity. It's minimalistic and it keeps the focus primarily on the puzzles.
I didn't find a way to cheese any of the levels. I did try.
This game is a different kind of fun. It's relaxing and the puzzles satisfying. The unique levels definitely help. The fact that rotating the pieces have a sound effect is very juicy.
All in all, this is a very good game I liked it a lot.