What is the I–vi–iii–vii°–I progression?
An upbeat feel with a minor-flavored descent back to the tonic.
Why it works
These chords outline strong tonic, dominant, and relative minor colors in G major: easy to sing and easy to remember on ukulele.
Try in other keys
Same Roman numerals; chords transpose with the key.
C major → C-Am-Em-Bdim-CD major → D-Bm-F#m-C#dim-DE major → E-C#m-G#m-D#dim-EF major → F-Dm-Am-Edim-FG major → G-Em-Bm-F#dim-GA major → A-F#m-C#m-G#dim-AB major → B-G#m-D#m-A#dim-B