Ukulele diagrams read string 4 → string 1, left to right (note names shown below each string). o = open string, digits on the grid = fret to press. Chord shapes are chosen automatically: low on the neck, all chord tones sounding.
Piano diagrams show a root-position voicing on a keyboard window that starts on the chord root. Accent key = root, tan keys = other chord tones.
Guitar diagrams read string 6 → string 1, low E to high E, left to right (note names shown below each string). o = open string, x = muted string, digits on the grid = fret to press, a rounded band = barre. Chord shapes are chosen automatically: low on the neck, all chord tones sounding.