This game reminds me a lot of Flower, what a beautiful game! Great in-game tutorials, the visual feedback is great and it feels super super polished. I really like that you have a variety in the difficulty of birds, some seemed to be programmed to stay away from me intentionally, adding more challenges to the game and target only hardcore players. Having a lot of birds following me and reacting to my song is a very satisfying feeling. Sometimes they could be a bit distracting when I make a turn because the whole screen is full of white birds. Speaking of turning, the mouse sensitivity is just perfect for me, and I have came across so many games that uses mouse and either have this too high or too low so kudos to you! You might find this nitpicking but the skybox with realistic cloud texture kinda throws me off a bit because it doesnt go with the graphics of the game, and I look at it 99% of the time. I think the music progresses a bit slow though, because I had a lot of birds following me but I got just a touch of music progression. All in all, such a beautiful game in all aspects! Great job!