A Diminished Piano Chord Chart
Notes: A - C - Eb
Formula: 1 - ♭3 - ♭5
Intervals: Root, Minor 3rd, Diminished 5th
Adim
Quick answer
The Adim piano chord uses the keys A, C, Eb. Play all 3 notes together for the full A Diminished sound.
- Piano keys
- A, C, Eb
- Formula
- 1 - ♭3 - ♭5
- Chord tone count
- 3 notes
Keys to Play
White keys: A, C
Black keys: Eb
Play all 3 notes simultaneously with your right hand.
About Diminished Chords
Built from two stacked minor 3rds. Diminished chords sound tense and unstable, often used as passing chords.
A Diminished Piano Chord FAQ
What notes are in the A Diminished piano chord?
The A Diminished piano chord uses the notes A, C, Eb.
Which piano keys do you press for Adim?
Press A, C, Eb and play all 3 notes together.
What is the formula for A Diminished?
The A Diminished formula is 1 - ♭3 - ♭5: Root, Minor 3rd, Diminished 5th.