This application helps the user to learn and memorize scales for Guitar, Bass, Banjo, Ukulele, and Mandolin. This interactive scale chart allows you to test your music scale knowledge. Toggle between the three disable modes. The full option shows all notes of the scale in either degree or note name notation. The outline options just shows the positions of the notes on the scale. The test option turns off all hints. When pressing a note on the fretboard a green marker indicates that the sel