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 C 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-Dbdim-DE major → E-Dbm-Abm-Ebdim-EF major → F-Dm-Am-Edim-FG major → G-Em-Bm-F#dim-GA major → A-F#m-Dbm-Abdim-AB major → B-Abm-Ebm-Bbdim-B