The ii–V–I Chord Progression

The ii–V–I is one of the most important chord progressions in jazz, but understanding it also gives you a much better understanding of how harmony works in many other styles of music.

The progression is built from the 2nd, 5th, and 1st chords of a major scale.

In the key of C major, the C major scale is: C – D – E – F – G – A – B – C

Building a chord on each scale degree gives us:

Scale Degree	Chord	Roman Numeral
1	C major	I
2	D minor	ii
3	E minor	iii
4	F major	IV
5	G major	V
6	A minor	vi
7	B diminished	vii°

So the ii–V–I in C major is: Dm7 → G7 → Cmaj7

The lowercase ii indicates a minor chord, while the uppercase V and I indicate major chords. For a deeper look at how these chords are built from the major scale, check out our article on how chords are built from the major scale.

Why Are the Chords Dm7, G7, and Cmaj7?

You can build the basic triads from the C major scale:

ii: D minor

Starting on D, select every other note of the scale: D – F – A

That's a D minor triad.

Now, add the next note: C

and you get: D – F – A – C

That's Dm7.

V: G7

Starting on G: G – B – D – F

The C major scale continues with the same notes after reaching the octave C. That’s why the scale is extended beyond the octave here—to show the notes needed to build the G7 chord: G – B – D – F.

That's G7, a dominant seventh chord.

I: Cmaj7

Starting on C: C – E – G – B

That's Cmaj7.

So the progression is: Dm7 → G7 → Cmaj7

The Most Important Part: Why Does It Work?

The ii–V–I isn't just three chords that happen to sound good together.

There is a strong sense of tension and resolution built into the progression.

The G7 chord contains two notes that strongly want to resolve: B → C and F → E

In other words: G7 → Cmaj7 contains two important half-step movements:

• B moves up to C

• F moves down to E

Those movements create a strong feeling of resolution.

This is one reason the V chord has such a powerful pull towards the I chord.

The ii chord helps prepare the V chord, creating a larger harmonic movement:

Dm7 → G7 → Cmaj7

Preparation → Tension → Resolution

To learn more about how chord progressions create tension and resolution, check out our article, How Chord Progressions Create Tension and Resolution.

Try It on Guitar

A simple set of jazz-style voicings is:

A ii–V–I in C major: Dm7 → G7 → Cmaj7, played with common jazz guitar voicings. Listen for how the G7 creates tension that resolves to Cmaj7.

Here’s a version using open-position voicings of these chords:

Here’s the same ii–V–I in C major: Dm7 → G7 → Cmaj7, this time using open-position voicings. The chord shapes are more familiar to many beginning guitarists, making it easier to hear the movement from tension to resolution.

Don't worry about playing these quickly at first.

Play each chord slowly and listen to how G7 wants to move to Cmaj7.

Hear the Resolution

Here's an especially useful exercise.

Play: G7 → Cmaj7

Then focus on the individual notes.

The B in G7 moves up to C.

The F in G7 moves down to E.

Play those notes by themselves:

B → C

F → E

Then play the entire chords:

G7 → Cmaj7

This exercise breaks down the resolution of G7 → Cmaj7. First, play the chords, then play the individual notes B → C and F → E, and finish by playing the chords again. These two half-step movements help you hear why G7 creates tension that resolves to Cmaj7.

You should be able to hear how those individual note movements contribute to the feeling of resolution.

This is an important concept: chord progressions are really the interaction of individual notes.

The ii Chord Also Has a Function

The ii chord doesn't have the same level of tension as the V chord.

Instead, it helps lead us toward the V.

In C major: Dm7 → G7 → Cmaj7

The roots move: D → G → C

This is a descending-fifths/root movement pattern:

• D is a fifth above G

• G is a fifth above C

The roots of the ii–V–I move by descending fifths: D → G → C. This is part of the larger pattern known as the circle of fifths, which helps explain why these chord changes sound so natural and connected.

This descending-fifths movement is a fundamental pattern in tonal harmony and is commonly illustrated by the circle of fifths.

You can think of the progression as gradually increasing and then releasing harmonic tension:

Dm7 → G7 → Cmaj7

Preparation → Tension → Resolution

The ii–V–I in Other Keys

The great thing about understanding the pattern is that you can move it to any major key.

For example, in G major: G – A – B – C – D – E – F♯

The ii chord is Am7.

The V chord is D7.

The I chord is Gmaj7.

So: Am7 → D7 → Gmaj7

The ii–V–I follows the same pattern in every major key. In G major, the progression is Am7 → D7 → Gmaj7, corresponding to ii7 → V7 → Imaj7.

In F major: Gm7 → C7 → Fmaj7

In F major, the ii–V–I is Gm7 → C7 → Fmaj7. Notice that the chord voicings and shapes are the same as the G major example—they’ve simply been moved to a different position on the neck.

In D major: Em7 → A7 → Dmaj7

In D major, the ii–V–I is Em7 → A7 → Dmaj7. Unlike the previous examples, these chords use different voicings, highlighting why it’s important to learn chord shapes and voicings in different positions around the neck.

The pattern remains the same: ii7 → V7 → Imaj7

Applying the ii–V–I to Improvisation

The ii–V–I is also one of the most important progressions for improvisation.

Start simple!

Over: Dm7 → G7 → Cmaj7 try playing notes from the C major scale over the entire progression.

The C major scale gives us the notes we need to apply the ii–V–I in C major. Practice the scale and use it to connect the notes of Dm7 → G7 → Cmaj7 across the neck.

This works because all three chords come from the C major scale.

But listen specifically for the chord tones.

Over Dm7, emphasize: D – F – A – C

Over G7, emphasize: G – B – D – F

Over Cmaj7, emphasize: C – E – G – B

A particularly useful exercise is to target the 3rds of each chord: F → B → E

These notes outline the changing harmonic quality:

• F = 3rd of Dm7

• B = 3rd of G7

• E = 3rd of Cmaj7

The Bigger Picture

The ii–V–I is worth learning because it demonstrates several fundamental concepts at once:

• Chords can be built from a major scale.

• Chords have different harmonic functions.

• Dominant chords create tension.

• Certain notes have a strong tendency to resolve.

• Root movement by fifths is an important part of tonal harmony.

• You can analyze a progression by its function, rather than simply memorizing chord names.

Once you understand ii–V–I, you'll start hearing this movement throughout jazz, pop, blues, and other styles of music.

Where we teach why music works—not just how to play it.

Continue Reading

Want to take these ideas further? Explore these related lessons:

• Learning the Freddie Green Comping Style with a ii–V–I Progression — Apply the ii–V–I progression to jazz rhythm guitar through compact chord voicings, four-to-the-bar comping, and smooth voice leading.