Good effort, but shallow gameplay.
First, you must be a bemani fan, because I recognized 90% of those songs when playing from playing In The Groove/DDR/Beatmania. Also, The main menu screen and the 3d countdown numbers were pretty cool for the graphics.
However, I don't really like the gameplay. Click the button? That's it? Disappointing. And you still didn't fix the tab+space bug.
Focus more on thinking about fun ideas than the graphics and I will rate your games higher.