12-Bar Quick Change · Blues
C7 · F7 · C7 · C7 · F7 · F7 · C7 · C7 · G7 · F7 · C7 · G7
I7 · IV7 · V7 in the key of C
The whole language in twelve bars — The Blue Kat Club changes (ARG Q39).
Four bars of 12-bar quick change in the key of C, written I7 · IV7 · V7 and played quarters over a backbeat groove at around 104 beats per minute. The chord shapes are below, and you can hear the whole thing play — and slow it down — without an account.
Opens in the Progression Lab. No account, nothing to sign in to — ten minutes of playback a day, and an hour with a free account.
How it should feel
- Strum
- Quarters
- Groove
- Backbeat
- Tempo
- 104 bpm
- Key
- C
- Voicings
- The Climb
The top voice steps upward through the progression — a melody rising inside the chords.
The shapes
Low E on the left, high e on the right. 0 is an open string, × is one you do not play.
| Chord | E | A | D | G | B | e |
|---|---|---|---|---|---|---|
| C7 | 3 | 3 | 2 | 3 | × | × |
| F7 | 5 | 6 | 3 | 5 | × | × |
| C7 | 8 | 10 | 8 | 9 | × | × |
| C7 | × | 7 | 8 | 5 | 8 | × |
| F7 | × | 8 | 10 | 8 | 10 | × |
| F7 | × | × | 7 | 8 | 6 | 8 |
| C7 | × | × | 10 | 12 | 11 | 12 |
| C7 | 3 | 3 | 2 | 3 | × | × |
| G7 | 3 | 5 | 3 | 4 | × | × |
| F7 | 5 | 6 | 3 | 5 | × | × |
| C7 | 8 | 10 | 8 | 9 | × | × |
| G7 | × | 10 | 9 | 7 | 6 | × |
More Blues
Posted . Part of a growing library of guitar chord progressions.