B°9 Piano Chord — Chart, Notes and Inversions

Short answer: B°9 is a B Diminished 9 chord containing the notes B, D, F, A♭, C♯. It has 4 inversions. Use the diagrams below to learn each voicing on the keyboard.

Also known as: B dim9

Guitar Chords

How to Play B°9 on Piano

B°9, Bdim9

Notes: B, D, F, A♭, C♯

B°9, Bdim9 (1st inversion)

Notes: D, F, A♭, B, C♯

B°9, Bdim9 (2nd inversion)

Notes: F, A♭, B, C♯, D

B°9, Bdim9 (3rd inversion)

Notes: A♭, B, C♯, D, F

Quick Summary

  • The B°9 chord contains the notes: B, D, F, A♭, C♯
  • It has 4 inversions, each rearranging the same notes
  • Also written as: B dim9
  • Use the keyboard diagrams above to see exact finger positions

Frequently Asked Questions

What is the B°9 chord on piano?

B°9 is a B Diminished 9 chord. It contains the notes B, D, F, A♭, C♯. On piano, play these notes simultaneously to sound the chord.

How do you play B°9 on piano?

To play B°9 on piano, press the keys B, D, F, A♭, C♯ 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 B°9 chord?

The B°9 chord contains the notes: B, D, F, A♭, C♯.

What are the inversions of B°9?

B°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 B°9?

B°9 is also known as B dim9. These are different notations for the same chord with the same notes: B, D, F, A♭, C♯.

All B chords

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