I–vi–ii–V: The Jazz Turnaround
I–vi–ii–V is a classic turnaround because it keeps you moving while still feeling inevitable. In C, Cmaj7 states home, Am7 is a gentle “tonic substitute,” Dm7 sets up the dominant, and G7 pulls you right back to the top. The magic is that each chord shares tones with the next, so even simple voicings glide. You’ll hear this at the end of A sections in standards, in intros, and as a looping vamp when a band wants to keep the energy up. For comping, aim for guide tones (3rds and 7ths) and let the bass define the roots. For a hipper sound, turn the vi into a secondary dominant (A7) or use a tritone sub for G7; the function stays the same but the color changes dramatically.
- Key
- C major
- Tempo
- 110 BPM
- Groove
- swing
Play it on guitar
Start slow, keep your right hand steady, and aim for clean changes on the downbeats. Once it’s comfortable, add a groove and increase tempo.
Capo suggestion: try capo 0 and play in C shapes for open chords.
Chords: Cmaj7 – Am7 – Dm7 – G7
Roman numerals & theory
Roman numerals describe the chord’s function relative to the key. This helps you transpose the “shape” to any key without memorizing new chord names.
In C major: Imaj7–VImaj7–IImaj7–V7
Theory Breakdown
Often called the "Rhythm Changes" turnaround, this loop keeps the music in a state of perpetual motion. It starts on the tonic (I), steps down to the relative minor (vi), moves to the pre-dominant minor (ii), and finishes on the dominant (V) to reset the loop. In classical terms, this is a circle-of-fifths progression (vi to ii, ii to V, V to I). Because the root notes move in intervals of a fourth/fifth, the ear hears a natural, rolling momentum that never feels static.
Musical Context
This loop is the backbone of Gershwin's "I Got Rhythm" and countless jazz tunes. It also forms the basis of many classic pop standards from the mid-20th century, such as "Heart and Soul" and "Blue Moon," and jazz comping studies.
Practice Tips
When practicing jazz comping over this loop, try using a steady "four-on-the-floor" quarter-note strumming pattern (often called Freddie Green style). Keep your left-hand grip light, squeezing the chords only on the beat and releasing pressure immediately to create a percussive, acoustic pulse.
Variations (keep the progression, change the feel)
- • Add 7ths for color (try maj7 on I, m7 on vi, and V7 before resolving).
- • Use a sus4 resolve on the V chord (e.g. Gsus4 → G) to create tension and release.
- • Change the rhythm instead of the chords: try anticipations (hit the next chord on the “and” of 4).
- • Arpeggiate the top notes to create a hook while the harmony stays the same.
- • Borrow a darker chord for contrast (in a major key, try iv for one bar before returning).
Related
FAQ
Select a chord below to start building your progression