Am7♭5 chord on piano

The A half-diminished 7 chord (Am7♭5) is A, C, E♭ and G. Here it is on the keyboard, with the fingers to use, every inversion and how it fits into keys.

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half-diminished seventh chord

A, C, E♭ and G

Am7♭5 chord on a piano keyboard: A, C, E♭ and G, starting from middle C upwardC4ACGE♭
Root
A
Minor third
C
Diminished fifth
E♭
Minor seventh
G

Formula

1 ♭3 ♭5 ♭7 (3, 6, 10 half steps above A)

Fingering in root position

Am7♭5 root position: notes from the bottom up and fingering
NotesACE♭G
Right hand1235
Left hand5321

Am7♭5 inversions

Am7♭5 has 3 inversions. Each one keeps the same notes and puts a different one at the bottom, so your hand can stay close to the chord before or after it.

Am7♭5

Root position

Am7♭5, root position, on the piano: A, C, E♭ and G from the bottom upC4ACGE♭
Am7♭5 root position: notes from the bottom up and fingering
NotesACE♭G
Right hand1235
Left hand5321

Am7♭5/C

First inversion

Am7♭5, first inversion, on the piano: C, E♭, G and A from the bottom upCGAC5E♭
Am7♭5/C first inversion: notes from the bottom up and fingering
NotesCE♭GA
Right hand1245
Left hand5321

Am7♭5/E♭

Second inversion

Am7♭5, second inversion, on the piano: E♭, G, A and C from the bottom upC4GACE♭
Am7♭5/E♭ second inversion: notes from the bottom up and fingering
NotesE♭GAC
Right hand1235
Left hand5321

Am7♭5/G

Third inversion

Am7♭5, third inversion, on the piano: G, A, C and E♭ from the bottom upC4GACE♭
Am7♭5/G third inversion: notes from the bottom up and fingering
NotesGACE♭
Right hand1235
Left hand5421

Keys with Am7♭5

Roman numerals give a chord's place in a key: capitals for major chords, small letters for minor, ° for diminished. Am7♭5 appears as:

  • viiø7 in B♭ major
  • iiø7 in G minor

How Am7♭5 is built

A is the root, C the minor third, E♭ the diminished fifth and G the minor seventh.

A half-diminished seventh, written m7♭5 or ø7, is a diminished chord plus the minor seventh, 10 half steps above the root. It is the chord on the seventh note of a major key and on the second note of a minor key.

Every chord takes every other letter of the alphabet, so the letters of Am7♭5 are A, C, E, G. That is why it is spelled A, C, E♭ and G.

Find Am7♭5 yourself

Without looking at the diagrams, find the chord on the keyboard, then each inversion. Saying the notes out loud as you tap them helps them stick.

Step 1 of 4

Tap the notes of Am7♭5, in any octave and any order.

CDEFGABCDEFGAB

Practice Am7♭5 in real music

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Questions

What notes are in the Am7♭5 chord?

Am7♭5 has four notes: A, C, E♭ and G. A is the root, C the minor third, E♭ the diminished fifth and G the minor seventh.

What fingers do you use for Am7♭5 on piano?

In root position, play A, C, E♭ and G with right hand fingers 1, 2, 3 and 5 (thumb, index finger, middle finger and little finger) and left hand fingers 5, 3, 2 and 1. The fingers change a little in each inversion; every inversion on this page shows its own.

What are the inversions of Am7♭5?

Am7♭5 has 3 inversions, one for each note other than the root at the bottom. First inversion (Am7♭5/C): C, E♭, G and A. Second inversion (Am7♭5/E♭): E♭, G, A and C. Third inversion (Am7♭5/G): G, A, C and E♭.

What key is Am7♭5 in?

Am7♭5 appears as viiø7 in B♭ major and iiø7 in G minor.

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