What is the I–I–I–I–IV–IV–I–I–V–IV–I–I progression?
The quintessential blues form. Twelve bars of pure soul.
Songs that use this
- Johnny B. Goode
- Sweet Home Chicago
- Hound Dog
Why it works
These chords outline strong tonic, dominant, and relative minor colors in D 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-C-C-C-F-F-C-C-G-F-C-CD major → D-D-D-D-G-G-D-D-A-G-D-DE major → E-E-E-E-A-A-E-E-B-A-E-EF major → F-F-F-F-Bb-Bb-F-F-C-Bb-F-FG major → G-G-G-G-C-C-G-G-D-C-G-GA major → A-A-A-A-D-D-A-A-E-D-A-AB major → B-B-B-B-E-E-B-B-F#-E-B-B