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Adim chord

A diminished

C4
A
C
Eb

Want it in context? Open Adim on the full piano.

Notes

  • A
    R
  • C
    b3
  • Eb
    b5

Formula: R – b3 – b5

Adim inversions

The same notes, with a different note in the bass.

Root position Adim

C4
A
C
Eb

1st inversion Adim/C

C
Eb
A
C6

2nd inversion Adim/Eb

C5
Eb
A
C

FAQ

What notes are in the Adim chord?

The A diminished chord (Adim) has 3 notes: A, C and Eb.

How do you play Adim on the piano?

Put your right hand on A, C and Eb, starting from A. A common fingering for three-note chords is thumb (1), middle finger (3) and little finger (5).

What is the formula of a diminished chord?

R – b3 – b5 (in semitones from the root: 0, 3, 6).