Wow, this is smiliar to sommehing I’m working on currently. Thus, I’m really impressed with the UI which was intuitive, looked good and felt smooth. The gameplay idea is also neat.
What I didn’t enjoy is that since I cannot look ahead with the camera (and even after the song is over, it jumps back to the start), I could only place the beats for the visible parts of the level, then play it, look at the new part, then repeat this over and over, and since the soultions were easy, it felt a bit tidious after a while.