Piano Chords TR app for iPhone and iPad

This is a piano chords learning App that combines an easy-to-use piano chords table and chord practice quizzes.

The piano chords table makes it easy to select chords and show them.
You can also listen chords and check rotational chords.

The chord practice quiz is a quiz-style practice mode for memorizing selected chords group.
Anyone can enjoy playing the quizzes just by pressing right keys of the displayed chord on the keyboard.

A favorite flag can be set for each chord, and you can practice only with the chords registered in your favorites.
In the practice results, the correct answer rate and the answer time for each chord are displayed, and the favorite flags can be set on the spot.
Please use them for repeated practice according to your purpose.

This App supports vertical and horizontal screens and also supports iPad, so please use it in your own easy-to-use style.
It is an App that focuses on having fun learning the piano chords, especially for beginners.