Adim7 chord
A diminished 7th
C4
A
C
Eb
Gb
Want it in context? Open Adim7 on the full piano.
Notes
- AR
- Cb3
- Ebb5
- Gb6
Formula: R – b3 – b5 – 6
Adim7 inversions
The same notes, with a different note in the bass.
Root position Adim7
C4
A
C
Eb
Gb
1st inversion Adim7/C
C
Eb
Gb
A
C6
2nd inversion Adim7/Eb
C5
Eb
Gb
A
C
3rd inversion Adim7/Gb
C5
Gb
A
C
Eb
More A chords
Diminished 7th chords in other keys
FAQ
What notes are in the Adim7 chord?
The A diminished 7th chord (Adim7) has 4 notes: A, C, Eb and Gb.
How do you play Adim7 on the piano?
Put your right hand on A, C, Eb and Gb, 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 7th chord?
R – b3 – b5 – 6 (in semitones from the root: 0, 3, 6, 9).