The application learn for piano chord(Majors, Minor, and 7th ).
The shape of the chord is displayed in green, and, ..red.. other the route sound, is convenient for the grasp of the inversion type.
The chord that remembers the shape of the chord on the study screen, and remembers on the test screen is confirmed.
12 chords (The inversion type is included) of each chord kind of majors minors 7th are set at random on the test screen.
- Hereafter, the piano will be started.
- Person who wants to grasp image of code in a short term