(Early Test - 3 Days before deadline)
Another cool rhythm game! I am glad that you opted to allow hands in place of tool tracking, it's not always easy to find objects which the Leap will recognize as a tool. Really like the stretching & squashing you have on the drums when hit, this makes it feel very responsive. I also like your tutorial & gradual increase in challenge, which makes the game very easy to pick up and play. I enjoyed the improv time, perhaps a sandbox mode with the user just presented with a drum kit could be cool? The black text on the UI is quite hard to read, Unity has an outline component you can add to text elements which should help with this (that's how I fixed this issue with my game). Overall very cool.
Good Stuff!