Adim piano chord (A diminished)

A – C – E♭

Formula 1 – ♭3 – ♭5

ACE♭

Adim inversions

An inversion keeps the same notes but puts a different one at the bottom. Use them to move to the next chord with the smallest hand movement.

Root position Adim

A – C – E♭

ACE♭

1st inversion Adim/C

C – E♭ – A

CAE♭

2nd inversion Adim/E♭

E♭ – A – C

ACE♭

Keys that contain Adim

Other A chords

← A♭dim · B♭dim →

Adim chord questions

What notes are in the A diminished chord?

Adim is A, C, E♭. Its formula is 1 – ♭3 – ♭5, counted from the root A.

How do you play Adim on piano?

With the right hand in root position, play A–C–E♭ using fingers 1, 3 and 5 (thumb on A). With the left hand, use fingers 5, 3 and 1 from the bottom.

What are the inversions of Adim?

Root position: A–C–E♭; 1st inversion: C–E♭–A; 2nd inversion: E♭–A–C.

Which keys contain Adim?

Adim occurs naturally in G minor (as ii°), B♭ major (as vii°).