Oh, this was a really pleasant experience! At first, though, I was confused — I tried to visually catch the notes in the circle, thinking that the crowd claps were meant to throw me off rhythm. It turned out that some notes are fake, and here lies a small issue: it's not always clear what the time gap is between the rhythm you're supposed to hit and the moment you actually need to press. Usually in rhythm games, this is conveyed through sound + visuals. Here, the visuals deliberately deceive the player to fit the theme, so timing isn't so much difficult as it is unclear.
I saw a good suggestion in the comments that I fully support — make the fake notes visually distinct from the real ones. Just to clarify, this is important because it's often unclear when to start playing the beat, and the beat itself isn't always clearly audible.
Other than that, I really enjoyed it — the graphics are lovely.