The ii V I Progression (2 5 1)

The ii-V-I is a three-chord route into the tonic. In C major, the standard jazz form is Dm7-G7-Cmaj7. The roots create clear direction, while the thirds and sevenths resolve by small steps.

ii7 V7 Imaj7
Dm7 G7 Cmaj7 in C
predominant, dominant, tonic

same family

Build the cadence in layersii7 - V7 - Imaj7

The progression

ii7
→
V7
→
Imaj7

Follow the arrows once, then use the player below to hear the loop.

Start with the roots

D to G and G to C each move down a perfect fifth, or up a perfect fourth if voiced in the other direction. This recurring root motion makes the destination easy to follow.

Root movement is only part of the sound. The chord qualities show the three functions:

Chord	Notes	Function
Dm7	D F A C	predominant
G7	G B D F	dominant
Cmaj7	C E G B	tonic

Follow the guide tones

The third and seventh of G7 are B and F. Together they form a tritone. When G7 resolves to Cmaj7, B rises to C and F falls to E. Those two semitone movements identify the dominant resolution even when the bass or voicing changes.

Dm7 prepares that dominant smoothly. Its F can remain as the seventh of G7, while C falls to B. Two voices barely move, but their harmonic roles change.

Hear three levels of detail

Roots onlyD, G, C reveals the large-scale direction.
Guide tones onlyplay F-C over Dm7, F-B over G7 and E-B over Cmaj7.
Full chordsadd the remaining notes without hiding the moving lines.

The minor-key ii V i

In C minor, a common form is D half-diminished 7, G7 and Cm: ii half-diminished 7-V7-i. The A-flat in the first chord belongs to the minor key, and the dominant usually uses B natural so it can lead into C.

The functions remain predominant, dominant and tonic. The chord qualities change to fit the minor scale and its raised leading tone.

Transpose it with numbers

To find ii-V-I in a new major key, locate scale degrees 2, 5 and 1, then build the diatonic seventh chords.

Key	ii7	V7	Imaj7
C	Dm7	G7	Cmaj7
F	Gm7	C7	Fmaj7
B-flat	Cm7	F7	B-flat maj7
G	Am7	D7	Gmaj7

Practise around the circle of fifths so that the pattern becomes a relationship rather than a memorised set of shapes.

Make it yours

Change the duration
Give ii and V two beats each, then let I fill the bar. The tonic receives more weight without changing the harmony.
Use inversions
Keep the upper voices within a narrow range while the bass states D-G-C.
Delay the tonic
Add an altered dominant or a short substitution before I, but preserve the guide-tone resolution so the destination remains clear.

When it is useful

Use ii-V-I when a phrase needs an unmistakable tonal arrival. It is central to jazz and bossa nova, and it can give pop, soul and musical theatre a more directed turnaround.

Keep going

Everything in chord progressions

Open chord progressions