A°9 Piano Chord — Chart, Notes and Inversions
Short answer: A°9 is a A Diminished 9 chord containing the notes A, C, E♭, G♭, B. It has 4 inversions. Use the diagrams below to learn each voicing on the keyboard.
Also known as: A dim9
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How to Play A°9 on Piano
A°9, Adim9
Notes: A, C, E♭, G♭, B
A°9, Adim9 (1st inversion)
Notes: C, E♭, G♭, A, B
A°9, Adim9 (2nd inversion)
Notes: E♭, G♭, A, B, C
A°9, Adim9 (3rd inversion)
Notes: G♭, A, B, C, E♭
Quick Summary
- The A°9 chord contains the notes: A, C, E♭, G♭, B
- It has 4 inversions, each rearranging the same notes
- Also written as: A dim9
- Use the keyboard diagrams above to see exact finger positions
Frequently Asked Questions
What is the A°9 chord on piano?
A°9 is a A Diminished 9 chord. It contains the notes A, C, E♭, G♭, B. On piano, play these notes simultaneously to sound the chord.
How do you play A°9 on piano?
To play A°9 on piano, press the keys A, C, E♭, G♭, B together. The root position uses these exact notes. There are 4 inversions available, each rearranging the same notes in a different order.
What notes are in the A°9 chord?
The A°9 chord contains the notes: A, C, E♭, G♭, B.
What are the inversions of A°9?
A°9 has 4 inversions. Each inversion rearranges the notes so a different note is at the bottom. The root position starts with the root note, the first inversion moves it to the top, and so on.
What are other names for A°9?
A°9 is also known as A dim9. These are different notations for the same chord with the same notes: A, C, E♭, G♭, B.