Short answer: C#o7b9 is a C# Diminished 7♭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#°7b9
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Notes: C♯, E, G, B♭, D
Notes: E, G, B♭, C♯, D
Notes: G, B♭, C♯, D, E
Notes: B♭, C♯, D, E, G
C#o7b9 is a C# Diminished 7♭9 chord. It contains the notes C♯, E, G, B♭, D. On piano, play these notes simultaneously to sound the chord.
To play C#o7b9 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.
The C#o7b9 chord contains the notes: C♯, E, G, B♭, D.
C#o7b9 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.
C#o7b9 is also known as C#°7b9. These are different notations for the same chord with the same notes: C♯, E, G, B♭, D.