Virtual Fretboard is a tool designed for musicians who want to quickly gain knowledge about the layout of an instrument's fretboard. It displays the layout of the fretboard for any fretted instrument for any chord or scale, for any tuning and in all keys, providing the user with the ability to freely produce guitar chord charts quickly and easily. You can manually add new instruments, tunings, chords and scales at any time should you find the one you require is not supported by default.