rhythm game sample made with Godot v4.0.1.

if the note is created at the beginning of the game with a slight backlog, This is likely an overhead at booting of the Godot Engine.
if you add a menu screen and call the game scene via get_tree().change_scene(), that would be fine.

• note speed adjustment
• generating notes & long notes
• note judgment consisting of Perfect, Good, and Bad
• auto playing
• print out the rate and max combo.