# How to play B♭ diminished 7th / A♭♭ (3rd inversion) chord on guitar — Shape xab9b9 | Guitar Wiz

> Learn how to play the B♭ diminished 7th / A♭♭ (3rd inversion) chord on guitar (Shape xab9b9). Follow our step-by-step finger placement instructions to master this fretboard shape. Place the 1st finger on the 9th fret of the 1st string and 3rd string in barre position.

Source: https://guitarwiz.app/chords/b-flat-diminished-7th/a-flat-flat/xab9b9

## Chord Facts

- Canonical chord: B♭ diminished 7th
- Display name: B♭dim7/A♭♭
- Notes: B♭, D♭, F♭, A♭♭
- Intervals: 1 (B♭), ♭3 (D♭), ♭5 (F♭), ♭♭7 (A♭♭)

## How To Play This Shape

- Place the 1st finger on the 9th fret of the 1st string and 3rd string in barre position
- Place the 2nd finger on the 10th fret of the 5th string
- Place the 3rd finger on the 11th fret of the 4th string
- Place the 4th finger on the 11th fret of the 2nd string

## Other Resources

- Parent chord page: https://guitarwiz.app/chords/b-flat-diminished-7th/a-flat-flat/
- Chord library: https://guitarwiz.app/chords