Fretboard Calculator

This is a quick reference fretboard tool. It was designed to assist learning complex/alternative chord formations, chord substitutions, chord melodies, finger style and scale options.

This tool will display the notes in a key, scale or chord on the fretboard. It will also display the keys, scales and chords it contains and is contained by.

For the multi instrumentalist it simplifies transition between instruments and tunings. From a standard guitar to an Open G tuning, to a ukulele and to a bass.

This tool allows you to visualize the key, scale or chord on the instrument and tuning of choice, and shows extended relationships.