Good controls are really hard indeed. So I don't have solutions. But I can describe problems. Initially I was confused with stop symbol meaning "Record" (in my head this is a circle) and double "Play" symbols. So i had to go an read how to actually play the game. Also I didn't really get why so many different keys are used for notes. Plus every stage keys were different. And it's hard to coordinate vertical in-game keyboard with horizontal real one. Also I had slight issues playing starting note at right time. I think if time indicator was visible before track starts it would be easier. Metronome was not very helpful for me in this regard.