First, choose an instrument to perform, between a simple children's xylophone with eight keys for simpler melodies, and a piano with twenty-three tones for more advanced ones. Select a children's song and play it on the instrument displayed on the phone screen, with a visual indication of the key to be pressed. At the same time, the text of the children's song is played on the screen in karaoke style. You can turn play mode on or off at any time so that the application plays the selected melody on its own. Finally, the app will evaluate your performance in performing the melody.
Cheerful, fun, and educational.