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A Half-Diminished Chord (Am7♭5)

Notes: A, C, E♭, G. Tap any diagram to hear it.

Am7♭5
Notes
ACE♭G
Formula
1 – ♭3 – ♭5 – ♭7

Am7♭5 on guitar

Open position · most common
x-0-1-0-1-3
Fret 4
x-0-5-5-4-5
Fret 7
x-x-7-8-8-8

Strings from low (left) to high (right). Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. × = don’t play, ○ = open string.

Am7♭5 on ukulele

Fret 2 · most common
2-3-3-3
Fret 5
5-7-5-6
Fret 8
8-9-8-10

Am7♭5 on piano

Other A chords

AAmA7Amaj7Am7Asus2Asus4AdimAaugA6Am6A9Aadd9A7sus4Adim7

Half-Diminished chords in other keys

Cm7♭5C♯m7♭5Dm7♭5E♭m7♭5Em7♭5Fm7♭5F♯m7♭5Gm7♭5A♭m7♭5B♭m7♭5Bm7♭5

About the A Half-Diminished chord

Half-diminished chords (minor seven flat five) are the ii chord of minor keys and a staple of jazz progressions. Am7♭5 is built from the root (A), minor third (C), diminished fifth (E♭), minor seventh (G).

Frequently asked questions

What notes are in the A Half-Diminished chord?

The Am7♭5 chord is made of A, C, E♭, G: the root, minor third, diminished fifth, minor seventh.

How do you play Am7♭5 on guitar?

The most common fingering is x-0-1-0-1-3, from the low E string to the high E string (x = don’t play that string, 0 = open string).

How do you play Am7♭5 on piano?

Press A, C, E♭, G together. In root position the lowest note is A.