Piano chords › A diminished

A diminished chord

Symbol: Adim · Notes: A – C – E♭

Two minor thirds stacked: an unstable, tense chord, used mostly to pass from one chord to another.

How it is built

• A: root
• C: minor third
• E♭: diminished fifth

Fingering: right hand 1 3 5, left hand 5 3 1 (1 = thumb, 5 = pinky).

Its inversions

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

In which keys

• VII in B♭ major
• II in G minor
• VII in B♭ harmonic minor

Other A chords

A · Am · A7 · Amaj7 · Am7 · Asus2 · Asus4 · A+ · A6 · Am6 · Aadd9 · Adim7 · Am7♭5

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