Adim7 chord on piano
A diminished 7th: A · C · E♭ · G♭. It sounds maximum suspense — stacked minor 3rds that could resolve four different ways.
NotesA C E♭ G♭
Built fromroot + minor 3rd + diminished 5th + diminished 7th
▶ Learn this chord free
The chord trainer shows it, listens, and scores you. No sign-up.
On the keyboard
Fingering
Right hand, root position: A — finger 1 · C — finger 2 · E♭ — finger 3 · G♭ — finger 5. (1 = thumb, 5 = little finger.)
Inversions
The same notes in a different order. Inversions are how players move between chords without jumping:
- RootA – C – E♭ – G♭
- 1stC – E♭ – G♭ – A
- 2ndE♭ – G♭ – A – C
- 3rdG♭ – A – C – E♭