Minor ii-V-i | Attache

The Big Idea

A minor ii-V-i is the minor-system version of the most important jazz cadence. In A minor, it is commonly written:

Bm7b5 → E7alt → Am7

The root motion is identical to the major cadence (ii → V → I). What changes is chord quality and tension language. The ii chord becomes half-diminished (ii7b5), the dominant almost always carries altered color, and the tonic lands on a minor chord family (i7 or i(maj7) depending on context).

For practical playing, this progression matters because minor cadences show up constantly in standards, often for only a bar or two at a time. If your ear cannot immediately recognize the half-diminished sound, minor sections can feel harmonically blurry.

Hearing The Cadence Clearly

The fastest way to internalize this progression is contrast.

First play a major cadence on the same root destination (Bm7 → E7 → Amaj7), then immediately play the minor version (Bm7b5 → E7alt → Am7). The root movement is unchanged, but the color narrows and darkens. That contrast trains your ear to hear function and color as separate things.

A useful listening anchor is the ii chord itself: a half-diminished sonority should sound like “unstable preparation,” not resting harmony. If your ii sounds too calm, the flat fifth is probably not clear enough in your voicing.

Why The Dominant Is Usually Altered

In minor harmony, the V chord is rarely played as a plain unaltered dominant for long. Alterations like b9, #9, or b13 increase directional pull and resolve naturally into chord tones of the minor tonic.

In A minor:

E7(b9) gives you F on top, which can resolve inward to E.
E7(b13) gives you C, which can hold as the minor 3rd of Am.
E7alt lets you choose color based on top-line direction rather than memorizing one fixed grip.

This is why minor cadences often feel more dramatic than major ones even at the same tempo: the dominant tension is intentionally more concentrated.

Practical Voicing Path (Beginner → Advanced)

Start from compact shapes and grow outward.

ii7b5 | V7b9 | i7 | i7 ii7b5 | V7alt | i(maj7) | i7

Beginner stage: use shells and prioritize the 3rd/7th connection between chords.

Intermediate stage: keep shells stable, then add one dominant alteration that resolves by half step.

Advanced stage: vary tonic color (i7, i6, i(maj7)) depending on phrase direction and tune context, while keeping voice leading smooth and singable.

A reliable decision rule: if altered color causes time feel or hand movement to destabilize, remove color first, not function.

Contexts You’ll Actually Meet

Minor ii-V-i can appear as:

a full cadence in minor standards,
a short tonicization inside a major tune,
or the back half of a turnaround targeting a minor chord.

Because these appearances are often brief, fluency is less about theoretical explanation and more about instant recognition. When you see a half-diminished chord, your hands and ears should already expect an altered dominant and minor arrival.

Common Mistakes

The most common problem is treating the ii as plain minor seventh. That removes the characteristic pull and makes the cadence sound generic.

Another issue is using altered dominants without resolving the altered tones deliberately. Alterations only sound musical when they point somewhere.

A subtler mistake is resolving to i(maj7) by default. That color is beautiful, but it is not always stylistically neutral. In many contexts, i7 or i6 is the clearer arrival.

Quick Self-Check

Play the cadence in A, D, and G minor without stopping. If each ii chord clearly sounds half-diminished, each dominant sounds like it urgently wants to resolve, and each minor tonic feels like a true landing rather than a pause, the progression is functioning correctly.

Practice Prompt

Record one 30-second loop in a single minor key with three passes:

shells only,
shells + one dominant alteration,
shells + one dominant alteration + tonic color choice (i7 vs i(maj7) or i6).

On playback, evaluate in this order: time feel, clarity of cadence pull, and smoothness of top-line motion.