root position: Adim
A – C – E♭ · RH 1-3-5, LH 5-3-1
Adim Piano Chord
The A diminished chord (Adim) is made of the notes A, C and E♭. Its formula is 1 – ♭3 – ♭5.
Notes in Adim
| Note | Formula | Interval from root |
|---|---|---|
| A | 1 | root |
| C | ♭3 | minor 3rd |
| E♭ | ♭5 | diminished 5th |
How to play Adim on piano
- Right hand: fingers 1-3-5
- Left hand: fingers 5-3-1
Fingers are numbered from the thumb (1) to the little finger (5).
Adim inversions
1st inversion: Adim/C
C – E♭ – A · RH 1-2-5, LH 5-3-1
2nd inversion: Adim/Eb
E♭ – A – C · RH 1-3-5, LH 5-2-1
Other names for Adim
Adim is also written as A°, Amb5, Am♭5.