In addition, the interface of it is shown in full-screen mode. First of all, you will have to go via a general setting menu, if you want to start play of the virtual piano, to make the necessary adjustments regarding the gameplay and location of your MIDI files and much more.
If you want to do a practice, you just have to activate a metronome, pick the keys of your desire to show, display hints relating where you should place your fingers and much more.