The scale and chord maker is simple to use. Simply select the scale or chord from the drop down list and click the "make it so" button. There are other options you can use to change the types of dots that appear on the neck. Remember that the text boxes are used for output -- they will ignore anything you type.
You should know how to play guitar to really appreciate this. Any questions or comments can be sent to firstname.lastname@example.org. Thank you and enjoy.