Practice Scale... brings up a window that allows the user to practice any defined scale.
The window is divided into two halves. The upper half is the practice area, the lower half is for checking your answers. To practice building a scale, first select a Key in the lower half of the window. then, in the upper half, click the keys on the virtual piano keyboard that make your chosen scale. Or, in the window below the virtual keyboard, type in numbers for scale degrees or letter names to make your chosen scale. Typed letters or numbers will also show up on the corresponding piano keys. To hear your scale, click on "Play It." To check your scale, go to the lower half of the window and click on "Show It."