The Major Circle of Fifths app is a useful reference tool for any musician or student of music theory, from beginners to advanced composers. The buttons from the initial screen represent all of the major scales in the Circle of Fifths. When a button from the circle is pressed the scales are displayed in a simple elegant manor so that they are easy to understand. The accidentals are included in the musical notation as well as the corresponding letters in the scale.

Press the play button to hear a recording of the scale while an animation displays the notes as they are heard. Touch the notes or the letters below the staff to hear the corresponding notes played back individually. Rotate the phone to landscape orientation for larger scale display and easier handling. Swipe from scale to scale while practicing or composing.

Enjoy the music!