It is an application which displays the circle of 4ths which is useful for analysis and a performance of a musical piece.
Reversing the direction of the circle of fourths gives the circle of fifths.
История обновлений
2.0.0
2014-12-16
This app has been updated by Apple to display the Apple Watch app icon.
The minor key indication function was added.
The function as which the title is set was added.
1.1
2011-10-20
The function which draws a straight line by touching & dragging from a character(C-G) to a character.
The function which cancels the line drawn at the end.