This is a very simple app that helps you learn more about musical harmony.

In order to use this, you have to press the buttons that appear when you open the app.

The first thing that you can do is choose between types of chords (maj, maj7, min, min7, sus4, sus6). You can choose the type of scale (major, minor, pentatonic, heptatonic, sextatonic).

Then you have to choose the note that you want to learn more about and the app will show you all the information that you need to know about that note.

It also has a very important function that allows you to learn about the chords that you have to play in a certain key.