Create scales of any equal temperament, from 2 to 48. Keyboard layouts are available for 12, 17, 19, 24, 31, and 41 ET. All other scales can be displayed in a grid layout, in which rows may ascend by any interval.
Colored keys related by circle of fifths are available for some scales. The circle of fifths is mapped onto the color wheel, with keys then laid out stepwise. In this manner, notes that are closely related in harmony are also closely related in color.