C°9 Piano Chord — Chart, Notes and Inversions
Short answer: C°9 is a C Diminished 9 chord containing the notes C, E♭, G♭, B♭♭, D. It has 4 inversions. Use the diagrams below to learn each voicing on the keyboard.
Also known as: C dim9
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How to Play C°9 on Piano
C°9, Cdim9
Notes: C, E♭, G♭, B♭♭, D
C°9, Cdim9 (1st inversion)
Notes: E♭, G♭, B♭♭, C, D
C°9, Cdim9 (2nd inversion)
Notes: G♭, B♭♭, C, D, E♭
C°9, Cdim9 (3rd inversion)
Notes: B♭♭, C, D, E♭, G♭
Quick Summary
- The C°9 chord contains the notes: C, E♭, G♭, B♭♭, D
- It has 4 inversions, each rearranging the same notes
- Also written as: C dim9
- Use the keyboard diagrams above to see exact finger positions
Frequently Asked Questions
What is the C°9 chord on piano?
C°9 is a C Diminished 9 chord. It contains the notes C, E♭, G♭, B♭♭, D. On piano, play these notes simultaneously to sound the chord.
How do you play C°9 on piano?
To play C°9 on piano, press the keys C, E♭, G♭, B♭♭, D 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 C°9 chord?
The C°9 chord contains the notes: C, E♭, G♭, B♭♭, D.
What are the inversions of C°9?
C°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 C°9?
C°9 is also known as C dim9. These are different notations for the same chord with the same notes: C, E♭, G♭, B♭♭, D.