Apps

A tool for creating fretboard diagrams.

An app for exploring the relationships between chords all over the fretboard. Supports both guitar and ukulele.

A tool for exploring the ukulele fretboard inside the moveable C-major chord shape for the I, IV, and V chords. This shape is useful because it outlines a one-octave box containing the entire scale and all diatonic chords in the key. See Position playing on ukulele for more information.